"I Cannot Tell A Lie"
The Internet is a wonderful source of information, but it can also facilitate the dissemination of false information as well, as all of us who have received dozens of virus hoaxes from our computer wary parents can attest.
Most people know that for computer related and many other hoaxes, Snopes is the place to check to see whether a fishy Internet story is real.
There's also a good site that examines the veracity of political news and candidates' claims as well from the Annenberg Public Policy Center at the University of Pennsylvania.
Check it out here.