Less than an hour after Google unveiled its new social network, Google Buzz, Yahoo and Microsoft took shots at their rival, both claiming that they've been running a similar service for years.
"Busy people don't want another social network, what they want is the convenience of aggregation," Microsoft said in a statement. "We've done that. Hotmail customers have benefited from Microsoft working with Flickr, Facebook, Twitter and 75 other partners since 2008."
Yahoo tweeted a similar gibe.