Blogging for big bucks

It's not just a hobby -- some small sites are making big money. Here's how to turn your passion into an online empire.

Michael Arrington is a partying kind of guy. While showing off his home in Atherton, Calif., he boasts about how he crammed 500 people into his one-acre backyard at a bash in February. Then there are the official parties, like the one he threw last Friday at August Capital, a nearby venture firm. Weeks ago, Arrington posted an open invitation on his website at 3 a.m. By sunrise, all 500 spots were taken; the onslaught of traffic crashed his site.