With Universal 'Like' Button, Facebook Spreads Across Web

Launching its universal "like" button, Facebook extended its tentacles across the internet today, setting up pipes to gather user data from anywhere on the web. And now that users can add what topics, products or content they like to their Facebook profiles, the social-networking site is sitting on a data treasure chest. At the F8 developers conference today, CEO Mark Zuckerberg announced a platform that aims to connect the entire internet through the social network. With those like buttons appearing on major publisher sites directly after the announcement, users can thumbs-up individual pages with one click and publish that to Facebook. Meanwhile, that Like is stored for later.

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