A couple of undergraduate students here at Stanford have launched she++, an effort to get more women involved in computing at the undergraduate level.
The clever name certainly doesn’t hurt, nor does the location of their effort, being centered in Silicon Valley. But they are starting to get lots of folks to take note. They are running an annual conference, and have been drawing top women (and some men) as speakers/keynotes. They are completing the creation a video documentary, whose trailer is available at:

I also recommend taking a look at their website.
http://sheplusplus.stanford.edu/
Steve Cooper
Chair, CSTA Board of Directors