Very Long Tail

Over 90% of traffic is long tail. In fact, the top 10,000 terms account for only 18.5% of traffic. That means that you should put more effort into getting those very long tail searches. For one thing, it is easier to rank for long tail, and for another it is the bulk of internet traffic.

Many people pay top dollar to the SEO firms to rank high for a few terms when they should focus on going after the very long trail.