Historically, I've ended up with girlfriends out of the general social group I spend time with anyway. This only works if you spend time with a social group of considerable size, and I suspect it of working better when more of the group is of an age younger than my current one (seems to me that on the *average* relationships run shorter early on, and people gradually make them longer as they get better at it; but only on the average of course, not always).
I do know at least two cases of people who found first-rate partners through dating services. This is very contrary to my expectations especially for my friends -- who are generally Not Normal, as you might say. But I'm less abnormal now than I used to be (society has changed more than me), and perhaps the matching process is smarter now too.
I'm not well-endowed with friends in commuting range of Hartford, I don't believe, so I don't think I can do anything directly useful.