SEO


SEO Full Suite Tools
SEOBOOK: Offers a wealth of free SEO tools including plugins for browsers, keyword suggestion tools, and more!  Both Free and Paid Tools.

Raven SEO Tools: Easily manage your website SEO and Social Media. Free 30 Day Trial.

WebPosition:  Measure your search engine optimization efforts with WebPosition, the online SEO tool that tracks your search rankings, helps you optimize content, tracks links, and keyword positions. (Paid Tool)

Browser Tools
SEO For Firefox: offferd by SEOBook, the FireBox tool part will help you pull some competitive inteligence about competitors as well as you site. (Free Tool)

SEMToolBar™: an attractive, easy-to-use toolbar that allows users access to statistics relating to online marketing campaigns that supports both Internet Explorer and Firefox. Unlike some other browser tools, SEMToolBar™ gives you the ability to use it for searching with your favorite search engine while providing SEO statistics, keyword statistics, and tracking. (Free Tool)

Keyword Tools
Wordtracker: Probably one of the most well known SEO keyword tools on the planet.  Free Trial.

Keyword Competitor: As the name suggests, Keyword Competitor is a keyword tool that can give you insight into your competitors SEO and PPC strategies.  Offers a 30 day trial.

SpyFu: What to see what your competitors are spending their ad dollars on? Or how about what their top organic keywords are?  SpyFu offers both FREE and Paid solutions.

Google Keyword Tool: One of the most popular FREE keyword tools on the Internet.  Google’s keyword tool will show you search volume, PPC data, and more!


Local Keyword Tools
5MinuiteSite: by far one of our favorite keyword tools that helps you add regional modifiers to your keyword list. This service is entirely free.  Donations are welcome though.

GetListed.org: is getting listed in local section of searches driving your crazy like Google places?    GetListed.org was launched on January 20, 2009 as a resource for small business owners to learn more about the way their businesses are listed online.  In summary, this is a great resource for local businesss owners to get access to tools that help them rank better in local engines as well as receive better exposure.

Universal Business Listing (Paid Service): Google, Yahoo, and Bing, oh my. Facebook, Foursquare, and Twitter. Superpages, Yelp, and Yellowpages.com. Shall we keep going? What about mobile search on Android, iPhone, and Blackberry? And be on the lookout for these new trends: in-car search and web browsing on your television.  Universal Business Listing is here to help. UBL is a one-stop service, providing access to all of the search sites consumers are using to find information.  Packages starting from $39.99. (as of 9/7/2011)


Rank Checking Tools
WebPosition:  Measure your search engine optimization efforts with WebPosition, the online SEO tool that tracks your search rankings and keyword positions. (Paid Tool)

Competitive Intelligence Tools
Compete: Provides free information for every site on the Internet including site traffic history and competitive analytics.

Keyword Competitor: As the name suggests, Keyword Competitor is a keyword tool that can give you insight into your competitors SEO and PPC strategies.  Offers a 30 day trial.


Link Popularity Tools
Linkdiagnosis.com: great free link poularity tool for on the fly backlink analysis.

Code Validation
W3C: This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc. If you wish to validate specific content such as RSS/Atom feeds or CSS stylesheets, MobileOK content, or to find broken links, there are other validators and tools available.

Domain Tools
Bust A Name: Great website for trying to think and generate good domain names.

Whois: Whois domain name lookup, available domain names, domain keyword search, deleted domains.

dnScoop: dnScoop.com attempts to estimate a value for an established website or a domain name by using a variety of  factors.

WhoIsHostingThis?: Great tool for determining where a website is being hosted.

Domain Tools: Bulk domain name checker allows you to list several domains to see what the availability is.

GoDaddy: One of the largest domain registrars on the planet. 
Yahoo Small Business: Free domain name when you purchase hosting.

SEO Software
SEOMOZ: SEOmoz combines campaign-based monitoring, actionable recommendations, and premium access to the web's largest SEO community -- try it free for 30 days!