According to TechCrunch, eBay is in talks to acquire StumbleUpon. While this could be great news for my former colleague, Dave Feller, I'm not sure I understand the strategic rationale. Om has some insight into potential reasons for such an acquisition. IMHO, it seems like eBay would be better served in partnering with SU and other companies like it via eBay's Developers and Affiliate Programs (Skype has similar programs as well). That way eBay can test multiple companies/concepts like SU without needing to spend the money (granted $45 million isn't a lot of money for eBay).

*Side note: Dave has been on a hot streak lately - first Florida (his Alma Mater) won 2 basketball and one football national championships and now StumbleUpon, where Dave works, may be acquired).