As far as Digg users are concerned, Ron Paul, Steve Jobs and slobbering dogs have nothing on Britney's latest baby. Digg and StumbleUpon users click most on stories related to celebrity gossip, videogames, and online clips, according to clickstream data from metrics firm Hitwise. Digg accounts for half of all visits to to news aggregators. eBay's StumbleUpon comes in second with 24 percent of the market. Conde Nast-owned Reddit takes third place.

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