The next time you reply to someone's Facebook wall post, don't bother looking for the "comment" button. From now on, all you have to do in order to submit a typed reply is hit enter. Yes, that'll cause some annoyances when you just want to add a paragraph break, but to compensate for that trouble, Facebook's finally allowing us to edit our comments after posting them.

People aren't happy about having to hold down the SHIFT key when pressing ENTER if they want to add a paragraph break to their Facebook comments. If they forget to hold down the second button, they'll wind up immediately posting a comment and being forced to take advantage of the new editing feature just to correct it.