The Onion takes a shot at Wikipedia this week:

Wikipedia, the online, reader-edited encyclopedia, honored the 750th anniversary of American independence on July 25 with a special featured section on its main page Tuesday.

Not bad, though it kinda beats the Wikipedia-is-error-prone point into the ground. But the fact that it’s being satirized says something.
Naturally, the piece has already been noted on Wikipedia’s article on The Onion. The talk page points to another, funnier, wiki-themed “news brief” from last September: “Congress Abandons WikiConstitution.”