The most obvious difference between Buzz and Digg is that the Buzz stories are not user-submitted, but the aggregated stories from select publishers, and users can vote them up or down.

Another difference is that rankings on Buzz are not determined by voting alone – it also includes search logs as one of the ranking criteria, the Wired Blog Network reported.

Similar to Digg, Buzz is divided by news categories, such as world news, sports, business, entertainment, travel and more. It has sections for image and video links as well.

Buzz is set to be launched today.

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