Via Marketing Shift a PR agency has created an SEO “long tail” optimization tool. From the Marketing Shift post:
A free program organizes “long tail” data about how people found your
site through natural search and suggests keywords to use for search
PR Firm Connors Communications, which wrote the MyLongTail software (now located at HitTail.com),
is also touting the merits of blogging and public relations to create
content that is effective in garnering natural search instead of over
paying for paid search.
The HitTail site has an 8 minute demo (sorry, 8 minutes is a LOOOONG TIME!). From viewing the demo, it looks like Google Analytics with a clear visualization of more than your top 25 inbound search words.
UPDATE: Please see the comments section on the latest from HitTail!