Why Facebook's Even More Attractive Than YouTube

What’s the significance of page views? They determine how many ads a company’s website can deliver to readers. For example, a site with 100 visitors who are “sticky” - meaning they spend a lot of time on the site each day, view many videos, different pages, etc. – is clearly superior to a site with 100 visitors who rarely visit more than a few pages during their time on the site. The reasoning is simple: you can deliver a lot more ads to the first group than the second group.

Read more at Yahoo! News.