I just ordered a copy of The Long Tail by Chris Anderson. I figured I should read it, since it's all about findability.
Here's an excerpt from an interview with Chris:
In the book, I go all the way back to 1896 and the Sears, Roebuck catalog. The radical technology then was the railroad, which was supposed to bring Amazon-size variety to the Kansas prairie. Which must have seemed amazing back then. Cable TV, digital TV -- that brought an explosion of choice to television. A key one clearly was Amazon.com, where they offer practically everything. And it's not just about a massive increase in variety; it's also about a massive increase in findability. In a physical store, it's often hard to find obscure products, if they're even there. The ability to search on the Web lets us find the variety.
Sound interesting? Time to buy your copy. And, to qualify for Free Super Saver Shipping, grab one of these similar books too. Long live the long tail!