One of the machinists' fora I'm on has been complaining about PB being flakey for the past week. Many there are going back to the old set-up. I use TinyPic, which is owned and operated by PB. I'm not sure if they are taking new people, though, as a rumor ran around earlier in the year that they wouldn't.
Looking at their opening page, they still say they will take newcomers.