According to TechCrunch, a Google affiliate has confirmed that the site’s +1 feature will begin its official launch tomorrow. PR company New Venture Communications reached out to the publication and more or less stole Google’s thunder: Google was going to give TechCrunch some “big” embargoed news, positioning itself for a decent chunk of press attention tomorrow concerning +1. But New Venture Communications’ broke the story before Google could give it away.
“I understand that Google planned to reach out to you about the new Goolge +1 button for websites that they’ll be unveiling shortly. I thought you might be interested in speaking with Hooman Radfar, CEO of Clearspring [its parent company], about the company’s role as a launch partner for Google +1,” the firm tells TechCrunch. It goes on to reveal that the more something gets “+1’ed,” the more credibility a URL is supposed to hold. Clearspring recently closed a $20 million round of series D fundraising and likely wants a little attention for partnering with Google on the +1 technology, which likely took advantage of Clearspring’s profitable AddThis platform.
We first heard about +1 in December, when a leaked screenshot revealed some sort of social feature that seemed to be based around recommending content via a web application that somehow tied to a user profile. Google Profiles have also gotten a makeover, as part of Google’s very, very incremental go at a social network. The +1 button will also apply to adds, which is one of Google’s approach to getting his hands on user data a la Facebook. In general, though, +1 means that social search is becoming even more important to Google.

[UPDATE]
Google announced +1’s official launch via its blog this afternoon. The +1 button will now begin appearing on a number of partner sites and will roll out for an even larger launch in the future. Google properties like Blogger, YouTube, Android Market, and Product Search are among the early +1’ers, and sites like Best Buy, Mashable, and The Huffington Post also made the initial release. You’ll start seeing the +1 button on their sites, and those interested in getting their own +1 application should visit Google’s designated site for webmasters.