Sign-up reminder

[jain]

This is a reminder that sign-ups close in two and a half four and a half days. I know that a couple of people were waiting to see who else signed up before committing to the exchange, but that strategy doesn't really work if everyone's doing the same thing. If you're in that position, I'd suggest that you sign up now, and if you don't like your chances in a couple of days, just delete your comment. I'll be using the comments that are in the post at midnight on June 22nd 24th to make the assignments.