I am providing with most of the links that I refer to when I am on a project or just when doing research. I hope this helps seo community all in your respective projects and to better understand SEO.
 

Please click on the links to take you to the respective web page. Also, please add your own to this list so that it can become better.
 
 
 


 SEO Code of Ethics:

http://office.microsoft.com/en-us/help/HA010563301033.aspx

* Search Engine Optimization Code of Ethics bruceclay.com - SEO Code of Ethics, "Do No Harm" http://www.bruceclay.com/web_ethics.htm
 

Search Engines Guidelines for Webmasters
* Google Webmaster Guidelines Webmaster Help Center - Webmaster Guidelines http://www.google.com/webmasters/guidelines.html
* Yahoo! Search Site Guidelines Yahoo! Help - Search http://help.yahoo.com/help/us/ysearch/basics/basics-18.html
* MSN Guidelines for Webmasters http://search.msn.com.my/webmasters/guidelines.aspx http://search.msn.com.my/webmasters/guidelines.aspx
* Ask Jeeves Guidelines for Webmasters http://sp.ask.com/docs/about/policy.html
* Open Directory Editorial Guidelines Open Directory Editorial Guidelines - Site Selection Criteria http://dmoz.org/guidelines/include.html
* Zeal Guidelines Overview http://www.zeal.com/guidelines/overview.jhtml
* Overture's SiteMatch™ Content Guidelines Online Marketing from Yahoo! Search Marketing (formerly Overture)
http://www.content.overture.com/d/USm/ays/sm_gl.jhtml
* Filing at Google a reinclusion request - how to Matt Cutts: Gadgets, Google, and SEO » Filing a reinclusion request http://www.mattcutts.com/blog/reinclusion-request-howto/
* Remove content from Google's index Webmaster Help Center - How can I prevent content from being indexed or remove content from Google's index?
http://www.google.com/support/webmasters/bin/answer.py?answer=35301
Search Engine Spammer Reporting
* Overture, AllTheWeb feedback@Overture.com
* AltaVista AltaVista - Search http://www.altavista.com/help/contact/search
* Google, AOL Report a Spam Result http://www.google.com/contact/spamreport.html
* Ask Jeeves http://sp.ask.com/docs/about/contact_tuwyt.php
* DMOZ / ODP Open Directory Public Abuse Report System http://report-abuse.dmoz.org/
* Lycos Lycos.com's Support Site http://help.lycos.com/watchdog/watchdog_1_help.asp
* Inktomi, MSN reportspam@inktomi.com
* Teoma ask@teoma.com
* Yahoo reportsearchspam@yahoo-inc.com

Search Engines Information for Webmasters
* Google Information for Webmasters Webmaster Help Center
http://www.google.com/webmasters/bot.html
SEO Tutorials
* SEOmoz | Beginner's Guide to Search Engine Optimization SEOmoz | Beginner's Guide to Search Engine Optimization http://www.seomoz.org/beginners.php
* Do It Yourself SEO, Where Do I Begin DIY SEO, Where Do I Begin? - Jaan’s Search Marketing Blog - Toledo, Ohio http://www.jaankanellis.com/seo-where-do-i-begin/
* Basics of search engine optimization http://www.456bereastreet.com/archive/2005...e_optimisation/
* Website Promotion Tutorials by instant Promotion Web Site Promotion Articles - Tips - Strategies http://www.instantposition.com/website-promotion/
* Google vs. Yahoo! Vs. MSN Search: Defining Search Engine Relevancy Google vs Yahoo! vs MSN Search: Comparing Search Algorithms
http://www.seobook.com/relevancy/
Organic SEO Tips:
* Ten Tips to the Top of the Search Engines Ten Tips to the Top of the Search Engines - Jill Whalen http://www.highrankings.com/tentips.htm
* Bruce Clay Search Engine Optimization Technical Tips bruceclay.com - Search Engine Optimization Technical Tips 
http://www.bruceclay.com/seo-tech-tips/techtips.htm
Free SEO Tools
* SEO Analysis Tool SEO Workers - Search Engine Optimization Analysis Tool http://www.seoworkers.com/tool/analyzer.html
* Page Strength SEO Tool SEOmoz | Page Strength SEO Tool http://www.seomoz.org/tools/page-strength.php
* instantPROMOTION SEO Tools Free Web Site Promotion Tools http://www.instantposition.com/free_tools.cfm
* Sitening SEO Analyzer - A Web Standards & SEO Web Design Page Analyzer SEO Analyzer - SEO Tools - Nashville SEO, SEM, Internet Strategy and Web Design http://www.sitening.com/tools/seo-analyzer/
* Reaction Engine Free Online SEO Analysis http://www.reactionengine.com/
* SEOBook Free SEO Tools Free SEO Tools & Search Engine Optimization Software http://tools.seobook.com
* Abilogic Page Keywords Analyzer Page Keywords Analyzer http://www.abilogic.com/seo/
* SEO Scanner WebmasterBrain - SEO Tools, Tips & News http://www.webmasterbrain.com/
* Keyword Density & Prominence Keyword density analyzer, and keyword placement & prominence analysis http://www.ranks.nl/tools/spider.html
* Meta Tag Analyzer Website Webmaster Search Engine Tools http://www.submitexpress.com/analyzer/
* Search Engine Keyword Tracker & Keyword Ranking Tool Free Search Engine Ranking & Keyword Tracker / Keyword Ranking Tool / SEO Rank : Search Engine Position Analysis Report http://www.digitalpoint.com/tools/keywords/
* Web Site Analysis search engine submissions - SiteSolutions.Com - free web site tools for search engine submissions, analysis, meta tags, search engine checker, search engine submission, web site submission service http://www.sitesolutions.com/analysis.asp
* Free Robots.txt Generator Robots.txt Generator - McAnerin Networks Inc. http://www.mcanerin.com/search-engine/robots-txt.htm
* Robots.txt syntax checker Robots.txt syntax checker http://www.sxw.org.uk/computing/robots/check.html
* Robots.txt Validator http://www.searchengineworld.com/cgi-bin/robotcheck.cgi
* Link Vendor SEO Tools Linkvendor - Professional SEO Tools http://www.linkvendor.com/seo-tools/
* Bad Neighborhood Text Link Checker Bad Neighborhood - SEO Tools http://www.bad-neighborhood.com/
* Google Banned Tool Google Banned Tool http://www.123promotion.co.uk/tools/googlebanned.php
* Free Site Map Generator Free Sitemap Generator
http://www.freesitemapgenerator.com/
Free SEO Desktop Tools
* Good Keywords Good Keywords - Find the best keywords for your web pages. http://www.goodkeywords.com/
* Free Monitor for Google Free Monitor for Google - query Google easily. Google Monitor Query website position web ranking software http://www.cleverstat.com/google-monitor-query.htm
* GSite Crawler Google Sitemap Generator for Windows Google Sitemap Generator for Windows :: GSiteCrawler
http://gsitecrawler.com/
Web Site Submission at Major Search Engines
* Google Add your URL to Google http://www.google.com/addurl/
* Yahoo! https://login.yahoo.com/config/login?.src=s...om/free/request
* MSN Live Search URL Submission
http://search.msn.com/docs/submit.aspx
Web Site Submission at Human-edited Directories
* DMOZ Submitting a Site to The Open Directory Project http://www.dmoz.org/add.html
* Webnauts Net Human and Search Engine Friendly Web Directory Submit a Link - Has been checked by HVO Group !!!
http://directory.webnauts.net/suggest-link.php
SEO Discussion Forums
* SEO Workers SEO Workers - Search Engine Optimization & Marketing Discussion Forums - Index  http://forums.seoworkers.com
* Webnauts Net Webnauts Net Discussion Forums (Powered by Invision Power Board) http://forums.webnauts.net
* Digitalpoint Webmaster Forum - Internet Marketing & Search Engine Forums http://forums.digitalpoint.com
* Google Community Google Community http://www.googlecommunity.com/
* Search Engine Forums Talk SEO ... Search Engine Optimization Techniques and Search Engine Marketing Industry Discussion Forums at JimWorld
http://www.searchengineforums.com/
Social Bookmarking
* Social Bookmarking (all in one) Socializer - free automatic social bookmark submission


====================
  1. They are all useful for SEOs;
  2. They are all web-based (no desk-top ones or FireFox extensions so far);
  3. They are all free.

Table of Contents:

  • Backlink Analyzing Online SEO Tools; http://www.searchenginejournal.com/seo-tools/7299/#backlinkcheckers
  • Keyword Research and Brainstorming Tools http://www.searchenginejournal.com/seo-tools/7299/#keywordresearch:
    • Keyword Brainstorming Tools;http://www.searchenginejournal.com/seo-tools/7299/#brainstorming
    • Social Media Based Keyword Analyzers; http://www.searchenginejournal.com/seo-tools/7299/#socialmedia
    • Online Dictionaries and Glossaries that Help with Keyword Research http://www.searchenginejournal.com/seo-tools/7299/#dictionaries
  • Domain Name Online Tools; http://www.searchenginejournal.com/seo-tools/7299/#domain
  • On-Site Analysis Online SEO Tools: http://www.searchenginejournal.com/seo-tools/7299/#onsite
    • On-page Keyword Prominence Research Tools; http://www.searchenginejournal.com/seo-tools/7299/#prominence
    • SEO Browsers; http://www.searchenginejournal.com/seo-tools/7299/#seobrowsers
    • Page Size and Load Time Checkers; http://www.searchenginejournal.com/seo-tools/7299/#pagesize
    • Additional Site Diagnostics Tools; http://www.searchenginejournal.com/seo-tools/7299/#add
  • Search Related Online Tools:  http://www.searchenginejournal.com/seo-tools/7299/#searchtools
    • Keyword Rank Checking Tools; http://www.searchenginejournal.com/seo-tools/7299/#rankings
    • Tools that Compare Different Search Engine Results; http://www.searchenginejournal.com/seo-tools/7299/#compare
  • Website Traffic and Demographics Report. http://www.searchenginejournal.com/seo-tools/7299/#traffic

1. Backlink Analyzing Online SEO Tools

 

Options/Tools

Smart

backlinks

Analyze

Back Links

(currently not working)

Link

Diagnosis

Link Hounds Yahoo Backlink Info

Checks links to

Page

Page

Domain

Domain, page, all deep links

Best feature

Fast and smooth

Keyword-in-anchor-text search

Multiple sorting and filtering options

Data organization based on the linking domain

Anchor Text

+

+

+

-

PR

+

-

+

-

Linking page outbound links

-

Inaccurate

+

-

Nofollow highlight

+

-

+

-

Firefox Extension

+

-

+

-

Sorting options

-

-

+

-

Interface

user-friendly

simple

user-friendly

user-friendly

Set Preferences

+

+

-

-

Useful links

-

-

-

whois data; site web archive; Google cache; linking pages.

More backlink checkers:

  • Backlink Watch (checks Anchor text); http://www.backlinkwatch.com/index.php
  • Domain Backlinks Checker (sorts the results based on the first- and second-level domains);

2. Keyword Research and Brainstorming Tools

Keyword Brainstorming Tools

 

Tools that help expand your keyword lists with synonyms, related terms and keyword phrases.

Tools/Features

What you will find there

Google Sets

Related terms (i.e. terms that are likely to appear in lists).

MSN clustering tool

Word clusters (keyword phrases).

Searchradar

Tag clouds and keyword definitions.

Keyword Map

Related terms (synonyms and keyword phrases).

Urban Dictionary

Related terms (related synonyms and urban words).

Social Media Based Keyword Analyzers

 

Use social media sites to explore how people use and tag your core term, its popularity and related words.

Features/Tools

TweetVolume

Twitter Search

Del.icio.usrelated terms

Facebook Lexicon

Data source

Twitter

Twitter

Del.icio.us

Facebook

How to use it.

Compare up to 3 terms popularity.

See your term in live context.

See your term related tags.

See how often your term is mentioned across FB walls.

Online Dictionaries and Glossaries that Help with Keyword Research

Dictionary

What you can find there:

The free dictionary

Your keyword definition(s), set phrases/ idioms (use them to lighten up your writing style), examples of usage,

words of the same root (inflected words and derivations), thesaurus, classic literature mentions, keyword phrases, related acronyms.

Wordnet

Definitions and sample sentences using your key term.

Rhyme Zone

Rhymes (can be real fun to play with by the way), synonyms, antonyms.

Synonym.com

Keyword synonyms and antonyms.

Cambridge online dictionary

Essential definitions and keyword phrases.

Meta Glossary

The word definitions, related words and synonyms.

Reference.com

Your core term synonyms and definitions.

Merriam-Webster dictionary

Definitions and derived terms.

3. Domain Name Online Tools

Dynamic Tools for Domain Name Brainstorming:

 

Features/Tools

PsychicWhois

Domize

BustAName

TLDs

6 ( .com, .net, .org, .biz, .info, .us)

3 (.com, .net, .org)

3 (.com, .net and .org)

Brainstorming help

domain name suggestions based on your previous searches and related terms

shows domain names one-character shorter than the one specified

Mixes the given keywords, suggests synonyms, adds prefixes and suffixes, shows both singular and plural versions, drops last vowel, checks for both hyphen- and non-hyphen versions

Additional domain name checkers and generators:

  • DomainsBot (dynamically checks the availability of domain names for 6 TLDs: .com, .org, .net, .info, .biz, .us); http://www.domainsbot.com/
  • InstantDomainSearch (dynamically and really fast checks the availability of domain names for 3 TLDs: .com, .org, .net); http://instantdomainsearch.com/
  • DomainNameSoup (suggests alternative terms for your core term, has a handy typo generator, adds words before and after your term);http://www.domainnamesoup.com/domain-name-wizard.php
  • Suggest Name http://suggest.name/and (DotoMator http://www.dotomator.com/) – has a fairly large database of available prefixes and suffixes that are sorted out in categories;
  • NameBoy (generates the list of domain names based on your primary and secondary (optional) terms).http://www.nameboy.com/

4. On-Site Analysis Online SEO Tools

On-page Keyword Prominence Research Tools.

Online SEO tools that help analyze keyword on-page usage.

Element to analyze:

Ranks

SEOworkers

RankQuest

Title tag

+

+

+

Meta Description

+

+

+

Headings

+

-

+

Alt tags

+

+

+

Anchor texts

+

+

+

Bold text

+

-

+

Text

1-, 2-, 3-word phrases

1-, 2-, 3-word phrases

1-, 2-, 3-word phrases

SEO Browsers

 

Features/ Tools

Domaintools SEO browser

SEO Browser

General benefits

  • find prominent elements (keywords) of the page;
  • check page elements visibility and accessibility.

Additional features

optimization score and tips on improving it

page meta tags, domain IP address, header response, page size, total number of links, words and images,

One more great tool to see text-only version of the site: LynxView

Page Size and Load Time Checkers

 

Features/Tools

Web Page Speed Report

Page Size Extractor

Total page size

+

+

Images

total size of the images

total number and size of the images

JavaScript size

+

-

CSS size

+

-

Each page object size

+

-

Download time

+

-

Additional features

list of useful recommendations on reducing size of particular elements

total number of hyperlinks, full list of all links on the page

Additional Site Diagnostics Tools:

  • Bad Neighborhood Tool (scans external links on a page and detects ‘bad links’).http://www.bad-neighborhood.com/text-link-tool.htm
  • Search engine SPAM detector (detects a few types of black-hat tricks: hidden text, doorway pages, keyword stuffing, etc).http://tool.motoricerca.info/spam-detector/
  • (Recently improved) Trifecta Page/ Site/ Power tool (allows only one search per day for non-pro SEOmoz members) – offers an exhaustive report on your site/ page power and ways to improve it.http://www.seomoz.org/trifecta

5. Search Related Online Tools

Keyword Rank Checking Tools

Online tools that check any term(s) rankings across various search engines.

 

Most valuable rank checkers:

Features/Tools

SeoMoz Rank Checker

Search Engine Forums Tool

Shoemoney Serps Script

SEObook Rank Checker

best feature

Archives the results

Checks multiple terms

Fast and easy to use

Advanced search options (+ international data centers)

export the results

Yes

No

No

No

several terms at a time

No

Yes

No

No

# of results checked

100

10

~100

1000

overall # of SEs

4

1

4

1

# of SEs at a time

1

1

4

1

link to the actual results page

Yes

No

No

No

registration required

Yes

No

No

No

term of use

Paid (with daily free 5 searches)

Free

Free

Free

browser plugin

Yes (Browser Button)

No

No

No

main drawbacks

Would be great if the history/reports could

be split into projects (i.e. domains checked) and SEs

Checks only top 10 results

No way to export/save results

No export feature.

Note: the tools may be checking different data centers, so the results can be slightly different from tool to tool.

More rank checking tools:

  • Search Engine Keyword Tracker & Keyword Ranking Tool; http://www.digitalpoint.com/tools/keywords/
  • Ventio Google Position;http://www.ventio.se/seo-tools/google-position/
  • SEOChat Keyword Position Check; http://www.seochat.com/seo-tools/multiple-datacenter-keyword-position/
  • Searchenginegenie Rank Checker; http://www.searchenginegenie.com/google-rank-checker.html
  • Mike’s Ranking Reports.http://mikes-marketing-tools.com/ranking-reports/
  • KeywordEnvy (checks up to 5 terms at a time and represents data in a handy graph.http://www.keywordenvy.com/

Tools that Compare Different Search Engine Results

 

Features/Tools

Prase

Thumbshots

Fuzz Find

# of SEs

3 (Google, Yahoo, MSN)

 

 

 
 
 
   
 
 
 
 
 
 
-

Features/Tools

Prase

Thumbshots

Fuzz Find

# of SEs

3 (Google, Yahoo, MSN)

2 (Google and Yahoo)

3 (Google, Yahoo, Live)(+Del.icio.us)

Additional Features

Sort by Google PR; start from any result;

set the min. PR to filter low-PR sites

Graphic representation of ranking differences.

Highlight the site you want to track

Sort the results based on

any Search Engine orDel.icio.us

More search related tools:

  • Pagerank Search allows to sort Google search results by Google PageRank or by relevance.

6. Website Traffic and Demographics Report

 

Features/Tools

Alexa.com

Compete.com

Google Trends

Quantcast

Traffic unit of measurement

percent (compared to overall Internet users measured by Alexa)

number of people

(average)

number of unique people/ number of visits

Time range

3 months

per month

(average)

per month / per week

Compare traffic

up to 5 domains

up to 5 websites

up to 5 websites

No

Demographics report

No

No

No

(U.S. only)

visitors’ gender distribution; age; household income; ethnicity; education.

Additional features

Shows traffic distribution across different countries; related websites; sites linking back to the one being checked

(U.S. only)

Reviews time spent on site compared to overall time spent in the Internet by US people (average change in this metric); average time spent on site by one person; number of pages per one visit.


 

 

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