McLean, Va. - Four months after raising $18 million in its third round of funding, Clearspring Technologies, the developer of a widget network designed to connect publishers and advertisers to audiences on social networking sites, said on Tuesday that it has acquired New Jersey-based AddThis, the developer of a popular bookmarking and content sharing service.

Financial terms of the deal were not disclosed.

AddThis is the creator of a button installed on several hundred thousand web sites that lets users save and share Web pages.

The combined company will let individuals share content -- such as web pages, videos and games -- across more than 80 social networking, blogging and bookmarking services, including Facebook, MySpace, iGoogle, Twitter and Digg.

Ted Leonsis, the chairman of Clearspring and vice chairman emeritus of AOL, said that the acquisition will allow Clearspring to connect digital content publishers and consumers "via a single set of universally recognizable tools that enable people to easily communicate with content."

Related Links:
http://biz.yahoo.com/bw/080930/20080930005404.html?.v=1

http://www.clearspring.com

http://www.addthis.com