But Facebook and other companies claim it's an unintentional side effect
(NEWSER) - Those ubiquitous “Like” buttons are a convenient way to quickly share hilarious videos and buzzed-about articles with all your Facebook friends—but they’re also a convenient way for Facebook to track you, the Wall Street Journal reveals. Facebook’s “Like,” Twitter’s “Tweet," and other social widgets allow their creators to collect information about the websites people visit—even if the buttons are not actually clicked, a Journal study shows. You only have to log in to your Twitter or Facebook account once in the past month for Twitter or Facebook to know your browsing habits. More»