Facebook is huge, nobody doubts that at this point, at over 350 million users, there aren't that many sites which can compete with it. But a statistic that is maybe just as important as the number of unique visitors, perhaps even more so for certain audiences, is page views and here Facebook is even more of a contender. Because of the nature of the site it tends to get a lot more page views than its competitors. The actual number may surprise even the biggest optimists, as the social network gets about 260 billion page views, with a 'b', every month.

The number, surprisingly, comes from Google through its "ad planner" tool which estimates a number of metrics for most of the sites on the web. These aren't exact measurements and they may not be the most accurate of numbers, but even with a huge room for error, the fact is that Facebook is so far ahead of everyone else that accuracy doesn't really matter all that much.

With 260 billion page views every month, it's the biggest site on the web at this point, likely followed by Google. Unfortunately, Google doesn't provide any estimates for the page view numbers google.com is getting. It does provide them for yahoo.com though, which is the runner up in the Google-made top, and it gets about 70 billion. At number three Microsoft's live.com gets an estimated 36 billion page views.

The interesting part comes in at number four which gets snatched up by vKontakte.ru, the Russian social network owned by the same investor who now has about 5 percent of Facebook and a big chunk of Zynga, with 33 billion page views per month. Pingdom.com has put together a nice chart focusing just on the social networks, which paints a pretty bleak picture for the rest of the competitors.

It surprisingly misses vKontakte altogether, but it does show just how badly MySpace and company are doing. With just 24 billion pageviews, MySpace is hardly a threat, while Twitter with 4.4 billion doesn't even register on the radar. All these numbers are, of course, estimates and but the trend is clear, Facebook dominates and it will only increase its lead for the foreseeable future.