Lockerz, a US-based social network backed by cable company Liberty Media, has acquired peer AddToAny for an undisclosed amount.
In January, Lockerz acquired photo sharing application Plixi for a reported $10m to $15m.
Kathy Savitt, founder and chief executive of Lockerz, said "Acquiring one of the Web’s first and most popular universal sharing tool brings our members new ways to curate the content they care about, while moving us closer to our vision of becoming the homepage for this generation."
In April, Lockerz said it had raised two-thirds of a planned $45m round from four investors, according to a regulatory filing.
In July last year, Lockerz raised a reported $30m from venture capital firm Kleiner Perkins Caufield & Byers and Nasdaq-listed Liberty Media’s Interactive division. Liberty on its website said it owned 65% of Lockerz.