ReadWriteWeb: I Like to Dislike! Facebook Introduces Comment Voting, Threads: now allows users to up- and down-vote other comments ..... comments are not only threaded, meaning each user can reply directly to another user, but more information is shown on each person, including their job and company, or network, and their comment record. The system also allows for up- and down-voting ..... Each comment begins with one point and a vote up or down raises or lowers that rating by a point. .... your comment stays at the top, so you can manage your comment and conversation ..... the move certainly encroaches on the territory of commenting systems like Disqus, Echo and Intense Debate. .... with more active posts rising to the top and negating the usual newest to oldest order. Allowing users to vote on posts and on individual comments could really alter the entire dynamic of Facebook.It was only a matter of time. I knew something like this was bound to happen. The like button was going to be more sophisticated. And it is getting there. The open graph just became more useful. Facebook comments just became more useful. Now it has become more possible to navigate updates that might collect hundreds of comments. This is called scaling.
The Facebook Blog: More Ways to Stay Secure: If you have any concerns about security of the computer you're using while accessing Facebook, we can text you a one-time password to use instead of your regular password. ..... Simply text "otp" to 32665 on your mobile phone (U.S. only), and you'll immediately receive a password that can be used only once and expires in 20 minutes. ..... the ability to sign out of Facebook remotely