'We were also struck by Groupon Inc's commitment to social causes, from its foundation as social action site ThePoint.com, to its recent fundraising deal to support relief efforts in Japan. This is very consistent with our own vision of how group buying can be used to support positive social outcomes.'
Groupon did not disclose what the value of the acquisition was, but similar buyouts in the space have been relatively large. For example, Yahoo!7 snapped up similar local site Spreets for about $40 million in January this year.
Crowdmass appears to have a much smaller presence online than Spreets, however. The site's Facebook page has about 2,000 followers, and the company has just 531 Twitter followers. In comparison, Spreets' Facebook page has been liked by some 25,768 people, and it has about 6,000 followers on Twitter.
Crowdmass's site notes that the company has been acquired by Groupon, with the site already redirecting visitors to Stardeals.
Image credit: Miguel Ugalde, royalty free