I've visited several Orthodox communities but never been part of one. One of the things that has always been a stumbling-block for me is the role of women. Here are two things I've observed about the communities I've visited -- whether they're typical I don't know:
Women are more home- and child-focused, not synagogue-focused. Few come to services to pray, and of course there are halachic issues that impede full participation. Discussion and activity at the kiddush tend to be about the kids.
Learning opportunities for adult women are limited -- there are some women's classes on a restricted set of topics (usually home- and child-related) and the occasional mixed-gender lecture, but a woman who, say, wants to learn gemara is generally going to be out of luck.
As a woman with no children, a professional (techie) career, and a thirst for knowledge, who currently studies and socialized with mixed-gender groups, I've felt out of place in my visits so far. But maybe there are important things I'm missing, that you have to be an insider or a regular to understand.
So my question is: if I wanted to become more involved in an Orthodox community, then (a) what options for meaningful adult-oriented participation (especially learning, worship, social) are likely to be available to me, and (b) assuming this varies, what if any are the general patterns (e.g. such-and-such group tends to be better for X, thus-and-such for Y)? I know there are different groups within Orthodoxy; locally we have Modern Orthodox, Lubavich, Young Israel, a place that's called "black hat" (not sure what it is formally), and some others. If I wanted to look for a community where someone like me would fit in, where should I look?