I think that some of these online backup programs sync automatically and store the revision history -- pretty sure that dropbox does and it's dead easy to install and use. You could set up a new account and share the login and password with your coauthors.
I think that some of these online backup programs sync automatically and store the revision history -- pretty sure that dropbox does and it's dead easy to install and use. You could set up a new account and share the login and password with your coauthors.