Twitter is a cocktail party. Facebook is a dinner party. You can flit in and out of a cocktail party easily. LinkedIn is just a map of professional contacts, on

Twitter is a cocktail party. Facebook is a dinner party. You can flit in and out of a cocktail party easily. LinkedIn is just a map of professional contacts, only useful for figuring out who you need to actually call for something. Google +, beats me. I know people on it, but none who use it.