The email from the Learning 2.0 wiki came through and it reads:

Hi!

Check this out. I've set up a PBwiki, a quick website that lets multiple people edit it, and I want to invite you to join mine.

This link will take you to the wiki.
https://nswlearning2.pbwiki.com/

I will have to check back with the wiki periodically to see what others have added or changed! I don't know if I am game enough to add 'extra features' to the wiki - it's a bit scary making major changes.