We're over on http://vlogumentary.pbwiki.com/ voice chatting live using a Yackpack widget in the sidebar. It's like a Walkie Talkie - you click and hold to talk. The number on the widget shows the number of people looking online right now.
I don't know if anyone's announced the vlogumentary wiki yet - but it's great. A history of videoblogging by us. I've also set up the yackpack widget on the main group wiki: http://videoblogginggroup.pbwiki.com/ If you go there and see a number higher than 1 in the sidebar widget, you can click talk and scare the bejeezus out of someone. Rupert