I've been getting a lot of news items in my Facebook news feed from things I've never heard of lately. I sent FB a bug report but they haven't responded. Today I found a way to look at all the pages that I had liked and out of 8 legit items, there were 30 or so that I've never heard of, some quite racy, the same ones in my news feed.
What's going on? How did they get there? I know I didn't press the like button for them because I've never even heard of them and rarely press 'like' anyways. Is this some kind of spam trend? How is this happening?