harrypotter hosts the
Masterlist of HP Communities on Dreamwidth, which is part of the part of the
Masterlist of Masterlists of Communities on Dreamwidth network.
The masterlist was last updated on 3/26/2012, with
hp_friendship.
Previously added in the last update were
hp_nextgen100,
dracoharry100,
lubricus and
deflower_draco.
If you have a community you'd like added to the masterlist, either leave it in the comments here or on the masterlist itself.