Programs like HitTail are great at helping you determine which non-competitive terms that you can go after that drive tons of traffic. For all the blogs that I optimized such as TechCrunch and Mashable the majority of their search traffic comes from long tail keywords. You would be surprised at how long tail keywords can add up to 10,000 or even 20,000 daily search engine hits for these blogs.

Found out about this a few days ago and decided to try it out -- it's free and zeros in on certain keywords for your site; might want to give it a try-out for at least a month ... Hit Tail

Now the most interesting new tool I’ve found is something called Hit Tail (don’t mistakenly type Hot Tail as I did!). What is Hit Tail?

Tail your traffic - Use Hit Tail to analyst search terms lead to your blog. Then you should SEO on the keywords identified. This is a free service.