This time of year, pretty much everybody but myself puts up some kind of clever april fools page.
www.woot.com has the cursor-following "I want one!" button (and a rather ridiculous product to boot, which I actually want for reasons I won't disclose, but can't buy because the server is too busy...)
google has "revealed" a new online dating service here:
http://www.google.com/romance/I haven't really searched around, so post anything you find amusing.