For an up to date list of all the bars and clubs as well as different types of groups check out Scotsgay below:
There are also groups listed on the site below:
The LGBT centre for health & wellbeing in Howe street offers a wide variety of information and activities from yoga to gardening, photography to kite making
For an alternative to the commercial gay scene (one reason I loved Frenchies) there is Queer Mutiny. They organise various events and "We are a DIY, non-hierarchical Collective" The website has not been updated for some time unfortunately.
Edinburgh Gay Scene Past And Present - SOME of the gay scene from today and places long gone