Personally, I think that a lot of men and women go about it wrong when they try to rebound back from a break up. Instead of giving themselves the appropriate time to heal their wounds and gather some much needed perspective as well as having fun - most men and women are off looking for the next relationship to get into. Don't misunderstand me, I am not against the idea of being in a relationship. What I am against is the ideal that you have to be in one to be happy and that you should try to get into one as soon as you can after breaking up with someone.
In my experience, and in observing the experience of others - that is almost never a good way to go about things. It's far better to allow yourself some time to heal and some time to explore what the world has to offer in terms of available singles. Here is an article on Match.com that offers some general but still valuableadvice: http://www.match.com/y/article.aspx?articleid=10465. You have to always remember that bouncing back is a good thing, but bouncing back too soon and ending up in another relationship that isn't going to work out well is not a good thing.