We hear Yahoo is in talks to buy Tumblr, a blogging startup run by 22-year-old David Karp for "low-to-mid eight figures" — which would translate to a small fortune for the New York entrepreneur.

Yahoo CEO-in waiting Sue Decker continues to push the company through yet another reorganization. An her minions aren't happy about it. One told Kara Swisher: “I am not sure right now, with all this drama and all this tension from Microsoft’s failed takeover and the rest of it, why we have to do this. This feels…

If Jeff Weiner, head of Yahoo's search, community, and media properties, leaves the company, who's left to run things? An outside hire seems unlikely, Michael Arrington points out, given Carl Icahn's fight with the Yahoo board. That leaves a battlefield promotion for one of Weiner's direct reports, shown here from…

Yahoo plans to launch its Digg competitor, Yahoo Buzz, tomorrow. After that, a tipster tells us, Yahoo VP Tapan Bhat and his Front Page/Front Doors group will have three months to prove the project's worth. If it's not driving significant traffic to publishers in Yahoo's ad network by then, EVP Jeff Weiner will shut…