Purpose: to serve as a central point where various Tcl or Tk related mailing lists can be mentioned. Add URLs for mailing lists when known.
There are web forums (different than mailing lists, I know) at Tek-Tips, http://www.tcl.tk/ , and perhaps elsewhere.
You might also check out http://aspn.activestate.com/ASPN/Tcl/Mail , where archives for quite a number of tcl mailing lists can be found.