I have a group project at college and wondered about the possibility of creating a folder that all students in my group could have access to. The folder would allow all users to change or add to its contents, and be password protected. Further, the password used would not be my ISP pass.
Producing a password protected folder is easy but to allow people to alter the contents of your site would require them to FTP the information to your pages.
To do this they would need to know your login name and your password.