I have been meaning to post this, but forgot until Brian Bruya and Tongdong Bai’s posts:
Since the server move, blog contributors must reset their passwords to be able to post again. To do this, please contact Steve Angle. We look forward to reading posts from all our contributors by and by.
(An aside: if you are interested in contributing a post as a guest, or in joining the contributors list, please contact one of the administrators: Steve Angle, Chris Fraser, or me.)