“Long tailed keyword marketing”:http://www.barrywise.com/2008/07/the-wisest-persons-guide-to-long-tail-keyword-marketing/ is the art of crafting these keywords and implementing them throughout your site.
The big advantages to using long tailed keywords are:
- They are plentiful and everywhere
- They are easy to rank for (low competition)
- They deliver better page result for the user
Collectively these low demand keywords can actually bring you more traffic than the more popular keywords. With enough of them inside your content, your traffic can eventually skyrocket.