It also depends if your trying to attempt some collaboration for a short period of time, most people would rather not have to learn a new system for a short/ sm

It also depends if your trying to attempt some collaboration for a short period of time, most people would rather not have to learn a new system for a short/ small project. Everyone has an email and is comfortable with it, it may be hard to convince non tech people that a web collaboration tool is the way to go. There is a lot of upside to them, with time I guess collaboration methods other than email will become common, especially with Google Wave on the way.