I just read a post on the top 3 SEO tools over at NoDoubtMarketing. Their list included an expected keyword  tool and a backlink checker.  Their third tool (actually the first on their list), was Google Website Optimizer.  I don’t personally view Google website optimizer as an SEO tool. However, it is a great tool for those in to Internet marketing.

In a concise little nutshell Google website optimizer allows for A/B testing of on page elements to determine effectiveness.  It does so via Javascript writing of page elements (thus my assertion that is has not real SEO bearing), and then tracking of conversions.  An awesome tool for Internet marketers given the price (free). If you have not seen it before, and would like to do some testing of your landing pages, give it a try.