Don't like what you see in your Facebook news feed? You can now vote on it. As we first reported two weeks ago, Facebook is letting users vote items up or down. The final interface, a choice of "thumbs-up" or "X" icons, differs from the "plus" and "minus" design Facebook had been testing internally. While a user's voting will initially just change what he sees in his own news feed, Facebook could easily turn the vote results into a Digg-like discussion board. The new thumb icon just makes the potential rivalrly more obvious. After the jump, a full example from my own news feed.