You can find my personal website at http://www.markroseman.com
I've been an active Tcl user and member of the Tcl community since 1993, and have been involved with several of the workshops and conferences (including co-chairing the 1996 one).
Most of my work has been in using Tcl for collaborative systems, starting with an academic groupware toolkit called GroupKit, and later the TeamWave family of products developed at TeamWave Software, the company I founded. I left TeamWave (well, the company that acquired TeamWave in late 2000) in April 2002 and am doing some more independent stuff now. Most of my energy is going into a new Wiki-like system called CourseForum.
If you have any interesting projects you need help on, please get in touch. My main interests are collaboration technologies, user interfaces and usability, and web applications. My personal web site has more information.