Design issue - accounts and sharing

Each tool to be included involves user accounts. Also, the way each tool does its sharing varies.

wikispaces - Each user requires wikispaces account. Access to update the space is granted to each user.

diigo - Each user requires a diigo account. Group members can invite others to join the group.

blog - Each user requires a blogger account. Each user can be added as an author.

calendar - Create a Google calendar account. Add calendar users to the group calendar.

docs - Create a Google docs account. Documents have to be shared by inviting others via email. A way to share folders would be useful here.

picasa - create a picasa web account. Photo albums have to be shared by inviting others via email.

This summary indicates that the concept of groups needs to be developed more with web tools. Particularly with Google tools, a user group will be useful so thing can be shared ona group rather than individual basis. Thi has been raised in a number of online forums.