I'm a gay guy and, while my countrymen are becoming more and more accommodating towards people of the third sex, I'm afraid there still is a problem for some guys to even befriend non-straight guys. (Funny, I don't see them having any problems chasing after non-straight girls) In any case, for people like me, I'd like to point out that the probability of getting a date online is much higher than getting one in the offline world.
The advantages of online dating work even more for homosexual or bisexual people. Generally, online anonymity serves to lower people's inhibitions. Where, in real-life situations, some people would have been flogged to death or humiliated just for asking another guy out on a date, in the Internet, the worst that people can do would be to troll you in the forum threads, spam your inbox or flame you in the chatroom, whereupon you can just as easily assume a new identity with a different nickname.
Also, online dating can be less riskier, in a way. If a gay person asks a guy out on a date, there is the distinct possibility that the guy might be homophobic and agree to date the gay guy, only to beat up, rape or, worse, blackmail the poor homosexual. With online dating, people can take their time chatting, getting to know each other, without the (immediate) need for actual contact. Of course, the risks still also come up when online dating leads to something more... offline.
Furthermore, just as web groups have bound people together by interests, so has it also done the same for online dating (and this goes for non-homosexual relationships too) Some people who prefer dates with blue eyes can actually specify exactly what they are looking for. Others who are looking for a good listener or a great conversationalist can, to put it crudely, "window-shop" among the online profiles.
However, that's pretty much it. I'd like to point out that, while I said the probability of getting a (non-straight) date online is much greater than getting one offline, the probability of getting a
meaningful relationship online is much, much lesser than an offline one.
The very same anonymity that can protect people can also be exploited for deceptive purposes. People have been known to post face pics that are not theirs. Even more common are those who post body pics that are not theirs, but let's not get into that. Others can also lie about their age, weight, height and, well, just about everything.
Additionally, people are, by nature, influenced by appearances. Very few indeed, are those who would hook up based solely on emotional bonds. Despite what many people say, a lot of us are mere humans who, somehow, are still looking for a cute one, a beautiful one, a handsome one or a sexy body. Many are the online relationships that have, somehow, fallen apart simply due to disappointment felt when people met up for real.
That said, though, I still believe that, for non-straight dates, at least, you're probably better off starting with online dating first, before moving on to actual meet-ups.
Then again, that is just my opinion