From Facebook Developer Wiki

Facebook Developer Wiki statistics

There are 8,549 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 1,212 pages that are probably legitimate content pages.

434 files have been uploaded.

There have been a total of 42,172,603 page views, and 43,753 page edits since Facebook Developer Wiki was setup. That comes to 5.12 average edits per page, and 963.88 views per edit.

The job queue length is 17.

User statistics

There are 2,988,595 registered users, of which 44 (or 0.00%) have Sysops rights.

Most viewed pages

1. Main Page‎ [5,560,746]
2. FBML‎ [1,587,417]
3. API‎ [1,526,843]
4. Fan Box‎ [1,289,104]
5. Facebook Connect‎ [1,126,079]
6. FBJS‎ [529,737]
7. Creating a Platform Application‎ [489,485]
8. Garage Calendar‎ [361,737]
9. FQL‎ [345,072]
10. Platform Events‎ [241,772]