Our company [http://www.scentech.ch/E/index.html] is using tcl in many different ways -
from small linux boards [http://www.scentech.ch/E/products/netmatik/index.html] to server systems.
I'm still learning tcl, but this could not hold me back to contribute small pieces that I think could be useful for others.
* [using tdom to check generated html]
well, not a lot yet, but a starting point ;-)