MidtownHangout.org has just went down a couple of days ago. No idea if they will be back.
Undoubtedly, a pretty sad event. Another online bastion of MM community is gone.
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[Update] Okay, it looks like it's back online, as of Jan 14!
[Update: it's back] MidtownHangout.org is now down
Moderators: Frost, Luigi, HQTM-Team