Myspace, Facebook does it best at getting everyone together. But this is a way for everyone even alumni and all to speak. Ask questions, bring up discussions, current trends, or even just to say who you are. Have fun and hopefully this will turn out well.
Once more people join the group and all I will start discussion. The first one I am thinking about is what employers are looking for in a new hire, and advice on how to have a successful interview. I will then go on from there and see what people would like to talk about.