This was a shortcut to a (semi-)private chatroom hosted by TodaysMeet.com, which I used regularly from 2013 up to the present. But TodaysMeet is no more. If you head to the site, you'll find this message:
TodaysMeet was a communication tool that allowed users to create private (or semi-private) chatrooms that anyone could join if they knew the URL. There are lots of ways such a tool could be used, and many educators used it to get students sharing their best thinking. I used it myself in both online and face-to-face courses from time to time.
