Most Tcl resources can be found through <http://www.scriptics.com/>,
although Scriptics do not actually support MacOS at present --- if you feel
they should, and would be prepared to pay for powerful Tcl development
tools (e.g. a debugger), you should make your voice heard.

Tcl (and Tk) on MacOS are now largely supported by Jim Ingham in his spare 
time, with some help from others.

The newsgroup comp.lang.tcl is a good starting point for more information.
