If there's one thing that makes my heart sink, it's the letters Fw: (or worse, Fw:Fw:) in an email's subject line: you just know it's going to be a viral video from 2004, or a really long and drawn out tale of hope and triumph that some spammer made up to sucker a load of people out of their address books.

My family and friends are pretty good about not sending me that kind of crap these days, but if yours are still serial offenders, you might be interested in a site called StopForwardingUs, which anonymously alerts your loved ones that someone's had just about enough of their japes.