An online brokerage, Zecco, pretended to give customers multi-million trading accounts on April 1st. Funny until customers began doing actual trades with the money. Lots of blogs were linking to this story, calling it the worst April Fool's ever
. (I'm not sure about that. It's still not as bad as some on the official list
.) But now the company is saying it was an accident
, not a purposeful prank.