April Fools Day is a chance for business to have fun without worrying too much about ROI. That said, there’s still some opportunity to make some money off April Fools Day. You will have to subscribe to the “I don’t make money from my site, I make money because of it” philosophy (I forget who said that).

Poking fun of web celebrities works
Smellr.com did good by featuring a who’s who on the internet. Kevin Rose, Michael Arrington, Scoble and the rest will definitely write about it, Tweet, Facebook, etc. Besides harnessing the web celeb power, they also did good by not trying to sell us their products. Their catchy Web2.0″ badge looked great compared to a generic About or Contact links. Check out sll the buzz on Google.

Missed all the tech April Fools day gags? Techcrunch has a list of the best.