Article courtesy of a friend at Facebook:
Be Careful What You "Like" On FacebookUsers click “Like” literally billions of times per day, but most don’t understand how that can trigger stories to show up in their friends’ newsfeeds. You may be a Like-spammer and not even know it!
Read more to find out how your Likes are used:
http://socialfixer.com/blog/2012/06/04/be-careful-what-you-like-on-facebook/
