What a gay community encompasses is the collective union of people of all ages, interests, backgrounds, experiences, and beliefs in the one unique trait they share, their sexuality. Some queer people in Halifax frequent GayBars and GayHangouts, as these are social outlets for interaction between them and other like-minded people. As there are great distinctions and differences between the various people the label of gay community represents, stereotypes and subcultures such as the 'twink', 'bear', 'alternative', 'leather', 'bar'... scenes are all terms to describe these differences.
In essence, the gay community is a diverse group of individuals that culminate to form a large group of people, some sharing similar interests.
CapnDan says: this last paragraph is really more interesting than the first. There is no one gay community. We have nothing, save our repression and that is fast fading, in common. Forinstance, as a reasonably well-off urban gay man I have absolutely nothing in common with a teen dyke living with her parents in Coldbrook. I realize that this isn't really very helpful except to reassure you that you will never please everyone who sleeps with the same sex, with a particular opinion or decision. Ever.
It is slightly less unhelpful to view us as the collection of communities mentioned above (and lots more.) Using the "multi faceted rainbow prism" model, there's a better chance that some generalization that you make about that subgroup group is going to be valid.
A secret club which GayTwinks have some sort of freaky mind-control over.
CapnDan writes: you have to see the musical play Cute Boys In Their Underpants Fight The Evil Trolls, the premise of which is that the world economy is controlled by twinks, and if you, an evil troll, capture them all, you'll control it instead. The trolls are cast as guys in their 30s and 40s with beards and body hair, the CYBs are of course twinks. Everyone gets mostly naked in this jolly romp. I saw it a few years ago at the Player's Theatre near Christopher Street in Greenwich Village.