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 it down. (Assuming he's still with the company.) Our source isn't optimistic, telling us "Buzz will launch with all hat but no cattle."

Monday you'll see what I'm talking about. The site will have no RSS feeds etc. [It's] another example of Y! not innovating but rather copying existing products in the marketplace poorly.

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