I recently came across some great data france business email list from Hitwise (about 1 year old, but still highly relevant) showing off just how substantive the long tail can be. Bill Tancer's post - Sizing Up the Long Tail - gives some stats: ...the head and body together only account for 3.25% of all search traffic! In fact, the top terms don’t account for much traffic: • Top 100 terms: 5.7% of the all search traffic • Top 500 terms: 8.

Of the all search traffic • Top 1,000 terms: 10.6% of the all search traffic • Top 10,000 terms: 18.5% of the all search traffic This means if you had a monopoly over the top 1,000 search terms across all search engines (which is impossible), you’d still be missing out on 89.4% of all search traffic. There’s so much traffic in the tail it is hard to even comprehend. To illustrate, if search were represented by a tiny lizard with a one-inch head, the tail of that lizard would stretch for 221 miles.