I know this only helps if you're in Portland, but you should be able to find something like this locally; if not, get something started!
Wednesday Womens' Mechanic Night at North Portland Bikeworks. Stop by any Wednesday from 6 to 8 PM to learn about bike maintenance and repair from women mechanics. Free - but donations are gratefully accepted. North Portland Bikeworks: A Neighborhood Learning Center, 3951 N Mississippi Ave.
503.287.1098
http://www.cityrepair.org/bikeworks/
npdxbikeworks@hotmail.com <npdxbikeworks@hotmail.com>