A general term for the collective cultural, political, and social concerns of homosexual men. Encompasses lifestyles, music, fashion, idioms, slang, sexuality, advocacy, and activism. Most commonly represented by the symbol of the rainbow.

In contemporary usage, the gay community is allied with the broader LGBT community.

Any forum of which the true intention of the webmaster is to meet up with gay and bisexual men in real life, but masked as something else. Can also mean 'Lame' or 'Stupid' community.
A good example is googlecommunity.com.