Oh, I forgot to mention................
You the owner, can add people by making them viewers, or collaborators, meaning you can all work on the same template (say a psp graphics slide presentation) and make it a combined effort., if you want to. All the templates are provided by Google, or you can all work together and create your own
Or you can do it like it is done here at MSN
It is up to you,
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To use the grid games, just put them on a page rather than a message (discussion) and they work the same as here except members, click edit page, delete graphic, type name, and update page.
The GOOD thing is, managers can make one page for members to edit for games etc, but they can't edit others if you get my drift.........
you can add gadgets, virtual fishtanks also to your backgrounds, we have one on our homepage for you to see