I've been working on an secure web-based document management system, called Projectdocs. The basic premise is the following:Need to share documents? Work in geographically disperse teams? Having a hard time keeping track of the most up-to-date documents? Like to be able to get to your documents wherever you are? Wouldn't it be great if...

All the versions of your documents were automatically saved somewhere?
You got a short descriptive email whenever someone added or updated a document?
It was easy to invite other people to collaborate?
This was all self-serve, without having to talk with someone in MIS or IT?