A new study by online ad network Chitika reveals two things we’ve suspected all along: Tweeple like news, and Diggers are nerds. 28% of all links clicked on Twitter go to news, while a whopping 57.38% of Digg clicks go to technology articles.

“I think you get a bit of an insight into the psychology of the different users of social networks. Twitterers want to be the first to know,” said Daniel Ruby, research director, online insights, Chitika. “They want to be the source of new news and new information, whether that’s a new product being released, or something that’s happening in the Middle East, or the latest crazy thing that Kanye West has done.”

The study does give us one surprise. Contrary to popular stereotypes of Facebookers, Facebook clicks don’t all go to inane crap. In fact, a third of Facebook clicks go to tech stuff, too. Facebookers are actually half as nerdy as Diggers.