Twitter Adds Its Own Sharing Button

Twitter is launching a Tweet button that publishers will be able to add to their sites so visitors can share content on the social net. The move comes as Twitter has expanded into other areas it previously left to other startups. Over the last several months, it has launched its own URL shortener, banned third-party ad networks from its site, and launched an official iPhone app. Twitter has defended all of those moves by saying they’re necessary to better serve users.

In introducing its own Tweet button, for instance, Twitter says that “despite the high volume of sharing, there is plenty of room to make it easier” and talks up how simple it is for publishers to add the buttons to their sites.

Twitter is moving into a market that until now has been dominated by TweetMeme, which is behind the gray and green “retweet” buttons which have become ubiquitous on the web. In a blog post, Twitter says it’s “working closely with the good folks at TweetMeme and, from here on out, they will be pointing to the Twitter Tweet button.” Meanwhile, TweetMeme says it is moving into several new businesses and launching a product for developers called DataSift.

It’s unclear what the terms of the Twitter-TweetMeme partnership are, but it would seem logical that TweetMeme would be getting compensated in some way, considering how much traction its buttons have gained (TweetMeme says its buttons are getting more than 750 million impressions a day). We’ve asked TweetMeme for more details and are waiting to hear back. TweetMeme founder Nick Halstead tells us in an e-mail that he “cannot comment on the commercial arrangement beyond what has already been said on both parties blog posts” but “we are extremely happy with the partnership.”