Facebook has added another acquisition to its arsenal with social bookmarking firm Spool.
In a blog post, the Spool team said its technology makes it easier to consume content on a mobile device. "We firmly believe that solving these problems will be increasingly important as the world accesses the Internet primarily through mobile devices," the company said.
"The Spool team has deep expertise in mobile software development and a passion for making content easy to consume. We're excited for the team to join and accelerate their vision at Facebook," a Facebook spokeswoman said in a statement.
News of the Facebook purchase came shortly after Spool announced in a separate blog post that it would shut down "to pursue our vision in a new way."
Spool has since sent its users an email with their bookmarks attached. Those links can be downloaded to a computer or loaded directly in to a browser's bookmarks folders. The company suggested that those who want to use another bookmark synchronisation service try Pocket or Delicious.
Spool launched in private beta in September 2011 after debuting at TechCrunch Disrupt. "Spool is an easy way to save articles, image galleries, and videos to get back to later," the company said at the time. "Just click on the Spool add-on in your browser and the page you're on will show up on your phone."
By January, it had raised $1 million (£638m) in funding from 15 investors.
Mobile will likely be a major focus at Facebook in the years ahead, with the Menlo Park-based Internet giant heavily rumoured to be considering launching its own smartphone. In February IPO filings, Facebook said it had 425 million mobile users, but was not yet making any money from them. Shortly after, Facebook announced plans for ads in mobile newsfeeds. But in an amended S-1 filing with the the US government's Securities and Exchange Commission, Facebook said it had 488 million mobile users in March but was still not generating any meaningful revenue from those interactions.
Last month there were reports that Facebook was working on location-based mobile advertising.
In recent months, Facebook has acquired Face.com, Piecable's mobile development team, and social discovery app Glancee. It also shelled out a rumoured $1 billion for Instagram - that's around £640 million in old money.