A Wikipedia warning
Here's the reason so many of us preach that Wikipedia is a useful starting point for research and not the end-all be-all.
John Seigenthaler writes in USA Today (via Romenesko) that for 132 days, a false and malicious biography appeared under his name there.
John Seigenthaler Sr. was the assistant to Attorney General Robert Kennedy in the early 1960's. For a brief time, he was thought to have been directly involved in the Kennedy assassinations of both John, and his brother, Bobby. Nothing was ever proven.One sentence is true, he writes: "I was Robert Kennedy's administrative assistant in the early 1960s. I also was his pallbearer." The rest? Lies.
An editor did change the site shortly after it was created, to fix a misspelling.