Who are the female technology leaders?

I sent Chris Pirillo a few speaker ideas for his Gnomedex 3.0 conference/geekfest but the only “big names” I could think of were all guys except one (Molly Holzschlag). It’s 2003. There has to be at least a handful of women (or more!) who have significant name recognition that should be invited to speak at this event. Who are they?