First Ubuntu-Women meeting was held January 11-12th, 2007, on #ubuntu-women on irc.freenode.net. It was a quite exciting roundup and an opportunity to meet with other women using Ubuntu. You can read a summary on Ubuntu-Women Wiki and download the full log of the day. Also check ubuntuforms thread and UWN #28 (still in progress as I write).
The next meeting will be held on January 25th at 13:00 and 1:00 UTC. Two different times are scheduled to accommodate different timezones.