From Facebook Developer Wiki

Facebook Developer Wiki statistics

There are 11,044 total pages in the database. This includes "talk" pages, pages about Facebook Developer Wiki, minimal "stub" pages, redirects, and others that probably don't qualify as content pages. Excluding those, there are 1,034 pages that are probably legitimate content pages.

636 files have been uploaded.

There have been a total of 52,891,714 page views, and 51,578 page edits since Facebook Developer Wiki was setup. That comes to 4.67 average edits per page, and 1,025.47 views per edit.

The job queue length is 28.

User statistics

There are 3,924,899 registered users, of which 54 (or 0.00%) have Sysops rights.

Most viewed pages

1. Main Page‎ [7,026,956]
2. API‎ [1,790,363]
3. FBML‎ [1,772,100]
4. Fan Box‎ [1,606,973]
5. Facebook Connect‎ [1,462,256]
6. FBJS‎ [619,648]
7. Creating a Platform Application‎ [572,889]
8. FQL‎ [415,839]
9. Garage Calendar‎ [387,844]
10. Platform Events‎ [309,124]