I Don't do dating, hate fake people. They pretend to be someone they're not to fit in. It can only end in tears.
I'm a honest guy, I feel I've met an honest woman, and I like to think that somewhere down the line she'll let go of her emotional baggage and open up to me.
As it stands she's a very close friend and we have alot of fun together. But something about the past stops her from letting me get too close. So I be the best friend I can be, and hope that circumstances change. I'm not going to force another relationship to only have it break when shit gets tough.
My only guidance (which is itself questionable) to women is: understand what YOU want, and what you think THEY want. With a little talking and some practice in communication it really isn't too hard to get to know people. Finding the "right" person can be difficult, but I'd rather be the right guy than have her find another wrong one.
As far as short term stuff goes I have no clue and have never investigated. But I have friends who have alot of fun without getting too serious, and without hurting anyone too much either.
Don't assume that your (or their) expectations are solid, it should be fluid, testing out the shape of things around you if you really want to get anywhere.