Facebook login is here! Answered
I've just pushed out a rather large set of changes. I'd like to present to you, the ability to log in using your Facebook account. If you already have an existing Instructables account, you may link up your Facebook account to it on your You screen. Watch upcoming releases for the ability to post automatically to your Wall, use your Facebook pictures, and more. We will be rolling them out one by one as we get them complete and tested. It's pretty hard to test this integration before it's live, so it's quite likely we'll find issues -- please bear with us (For example, we don't handle non-Latin alphabets in user names right quite yet). Tell us when something goes wrong by filing a bug in the Bugs Forum.
Another significant change is to the layout of Instructables. We've made it easier to read with a slightly bigger font size, and put the pictures above the text which many users have been asking us to do for some time. The editor has also had some improvements - bigger size text area and a cleaner look too.