MediaWiki is the software used for Wikipedia [http://www.wikipedia.org/] and the
other Wikimedia Foundation websites. Compared to other wikis, it has an
excellent range of features and support for high-traffic websites using
-multiple servers (Wikimedia sites peak in the 5000+ requests per second range
-as of November 2005).
+multiple servers (Wikimedia sites peak in the 50000+ requests per second range
+as of January 2008).
While quite usable on smaller sites, you may find you have to "roll your own"
local documentation, and some aspects of configuration may seem overcomplicated