I just noticed it too. I checked my email, but no info there. I'm sure they'll be back -- this slow period is a good reason to catch up on everything I've put off because of Crowdsource $ opportunities. Are the editing jobs getting caught up, I wonder?
I saw someone say there were something like 16k edits that needed doing, I doubt they're done already.
I'd work on editing if I had any confidence in doing it correctly (not grammar and punctuation, but CS preferences). I was thinking today that I'd prefer doing editing in a room of editors so we could be sure of being on the same page. Writing, on the other hand, suits a solitary environment (for me, anyway).
But there's no editing jobs up there, at least that I can see. I don't doubt for a second that they are horribly backlogged, though. I've got callouts pending from 2 weeks ago. If you go to the website you can see the HITs up, and there I can see grading HITs, so I guess I'll just do those today.
The edits are still there. You can get to them from your CS website or one of the links kristen posted elsewhere.