From the LA Times:
The study this spring by San Francisco-based Community Marketing Inc. found that an eye-popping 92.5% of gay men reported that they voted in the 2004 presidential race, and almost 84% said they cast ballots in the 2006 midterm election. Among lesbians, the results were almost as impressive; nearly 91% said they voted in 2004; for the midterm, the figure was 78%.
By comparison, the Washington-based Committee for the Study of the American Electorate put the turnout for all Americans eligible to vote at about 61% in 2004 and roughly 40% in 2006.
There are always problems with these sorts of surveys, like how do they define "gay" and if they try to include closet cases or not, but actually this sounds about right to me. I remember I was living crowded five to a shoebox-sized apartment for a while with four lovely other gay men, one Republican, one Libertarian, one centrist, and me and the fourth were pretty liberal, but everyone there had voted in the 2004 election. And I actually talk about voting with boys on gay.com and other chat sites. Like, yeah, I don't find these results hard to believe.