A lot of you are looking for love on the internet aren't you?
Personally, when I was footloose and fancy-free, I met girls the normal way. You know, just short of paralytic.
Anyway, this is the only place I've ever heard anyone talking of OK Cupid so this may be of interest to you:
It sounds like a lot of effort and not really the best how-to guide, but hey might be some pointers in there for you.