Yahoo and Twitter announced a partnership today that will see Twitter provide Yahoo with access to their full tweet feed, nicknamed The Firehose.

The deal will result in tweets appearing in Yahoo Search as well as other Yahoo properties such as the Yahoo Homepage, Yahoo Mail and Yahoo Sports. Yahoo will also integrate Twitter clients into their various applications so that Twitter users can tweet from within the Yahoo network.

The partnership announcement was delivered to media with an embargo, but within a few hours the story broke on the blogosphere and Yahoo pretty much gave the game away with the *clues* they posted on Twitter.

With a worldwide audience of 600 million, Yahoo offers Twitter significant exposure to add to their existing partnerships with the other major search giants Bing and Google.