Ordelia Carlew, the poison-paranoid Arithmancy whiz, has a Study Group, which I don't quite remember giving her, but now it has a couple of members, and a thread of its own. o.O
So, in the interests of trying to make something decent out of the group, I'm hoping more people will join.
Basically, it's a group that meets in the Library and a deserted classroom alternately on Tuesdays and Thursdays. Ordelia tutors those who need help in Potions and Arithmancy, and begs help in Astronomy. Some people just come to work on homework, individually and with others. It's not total nerdery, she also uses the time to discuss pranks with friends, and to discuss various things with intelligent people.
The thread is http://beyondstonewalls.com/index.php/topic,4913.msg45139.html#msg45139
You can join just by posting a post detailing your arrival there (hopefully incuding how long you've been part of the group, etc), or by replying to this post. Hoping to see you there!