Mel Chua
what: hacker, teacher, ECE, coder, intermittent journalist/writer/artist, purveyor of randomosity
note: I learn by documenting. For some reason, this makes fellow hackers really happy.
Christa Casebeer

I enjoy sharing my knowledge and empowering people with technology. I have been a systems administrator for 12 years, worked in web design for 10 years, and have presented technical courses for a wide variety of topics to age groups from children to seniors.
In 2007, I branched off the 8 year old http://linuxchic.net website by starting the weekly tech show, http://alternageek.com which focuses on a broad range of technology subjects.
Topics I prefer include WordPress, LAMP, Linux, systems administration, VMware virtualization, podcasting, and blogging.
Sara "Scout" Sinclair

Sara "Scout" Sinclair is a Ph.D. candidate in Computer Science at Dartmouth College. Her research interests include access control and the human factors (both business- and usability-oriented) that constrain or drive authorization systems.
More generally, her work includes a number of projects at the intersection of human systems and secure computer systems, including those involving insider threat, enterprise computer security, phishing, and iPhone application development. Her other professional interests include operating systems, discrete math, and computer science education.
Marianne Sweeny
Livia Labate
Laura Raderman
Laura's speaking skills bring together several topics surrounding security. Her specializations are network and UNIX security. She is also active in PKI development and management, like how to actually use those certificates you spent so much for.
Laura comes from a UNIX system administrator background, with fluency in OS X, FreeBSD, Linux (Debian and RedHat/Fedora), Solaris, and even some HP-UX and AIX thrown in.
Lately, she's been managing groups of security professionals for such tasks as defining requirements, developing secure code, and penetration testing.