It is an LGBT information and activity center that provides the necessary guidance a tourist in a new city might need to feel safe and aware like a local. Not only can they tell you about places to visit (Tallinn over all is a friendly city) but you can join the center for a movie night on Friday, some workshops, discussions, lectures and board games.
They provide a space for all kinds of meetings: gay, lesbian, transgender, gay Christians community, bears etc. Friends and families are also welcome to support. Physiological help can be provided upon request.
During their existence a lot of interesting and informative happenings have taken place.
One of my favorite and very important events is the only feminist festival in Estonia called LadyFest. It is organized by another volunteer group and can happen in beginning of March. Right now they are collecting funds on Estonian crowd-funding website. They will celebrate their 5th year, so I think they deserve a shout!
Check out their Facebook page and website to find out more information.