Popular Free SEO Tools

1. SEOBook Keyword Suggestion Tool – Many professional search engine optimization firms use this powerful tool as part of their initial keyword research phase. Do yourself a favor and bookmark it now.
2. Link Hub Finder Tool – If you are lucky enough to have a Google API key, this tool will help you determine link hub sites for virtually any niche.
3. Quintura – Find out where YOU live in your “keyword neighborhood”. A great way to get a relative overview of where you stand and will help you develop your initial goals.
4. HitTail – This sweet little code snipet reveals, in real time, the most promising but least utilized keywords that drive traffic to your site organically. Develop your own “longtail” SEM campaign and double your ROI.
5. What the Buzz? – A keyword research tool that will tell you who’s talking about a certain keyword. Semi interesting but can be valuable nonetheless.
6. SummitTOOLS Spider Simulator – We’ve all seen tools that tell you how a search engine spider might see your pages and what can be done to boost your visibility and subsequent search engine ranking (as well as the 500 million other variables Google uses to rank your site). Every list has one so now ours does too.
7. Virante Keyword Theme & Link Relationship Tools – Submit a single keyword and it will serve up a list the keywords most often found in conjunction with your keyword in the content of all the sites on the World Wide Web.
8. Microsoft AdCenter Labs Search Funnel – The Search Funnel tool is for those of you who are interested in visualizing how your average Joe uses a search engine.
9. Google Webmaster Central – One-stop shop for from-the-source information about how Google crawls and indexes websites.
10. Stephan Spencer’s Blog and RSS Feed Search SEO – Tips and tactics for optimizing your blogs and RSS feeds for SEO purposes.
11. How Linkable? Tool – This tool lists all the factors that go into Phillip Lessen’s good-or-not-good filter producing a score and an explanation as to why or why not your blog posts are linkable.
12. Mobile Search Marketing – If your into it, tips on the ellusive topic of mobile search engine optimization.