I'm a systems engineer in Charlottesville, VA, currently doing networking and security stuff.
I've been playing with CMS systems for a long time, always hunting for one that meets my needs for a complete community site that is easy to manage and administer.
Tiki so far is the closest.
My home server is http://www.arachnerd.org/
I also host http://www.prospace.org, and am migrating it to tiki
This is a great system, and I like the energy of the developers. As I get more time, I'll contribute to the documentation.