This page lists about a dozen links to key places on the web regarding Tcl/Tk.  It's quick and dirty... sort of RAD, just like Tcl/Tk ''':o)'''

There's a weekly post on comp.lang.tcl, called Tcl-URL! (with an archive [http://purl.org/thecliff/tcl/url.html]), which summarize news and points to a couple of central Tcl/Tk sites:

    The "Welcome to comp.lang.tcl" message by Andreas Kupries
        http://www.westend.com/~kupries/c.l.t.welcome.html

    The contents of the page above is mailed to everyone posting
    to news:comp.lang.tcl for the first time.

    Larry Virden maintains a comp.lang.tcl FAQ launcher
        http://www.purl.org/NET/Tcl-FAQ/

    Scriptics maintains a highly organized Tcl resource center
        http://www.scriptics.com/resource/

    They also keep info to convince your boss Tcl is a good thing
        http://www.scriptics.com/scripting/

    NeoSoft has a comp.lang.tcl contributed sources archive
        http://www.neosoft.com/tcl/contributed-software/

    Cameron Laird tracks many Tcl/Tk references of interest
        http://starbase.neosoft.com/~claird/comp.lang.tcl/

    Tcl/Tk Consortium can search comp.lang.tcl and c.l.t.announce
        http://www.tclconsortium.org/resources/

    Cetus Links maintains a Tcl/Tk page with verified links
        http://www.cetus-links.org/oo_tcl_tk.html

    Unifix Tcl/Tk Resources Center
        http://www.unifix-online.com/tcltk/

    The comp.lang.tcl.announce post archives are at
        http://www.egroups.com/list/tcl_announce/

    There are two newsgroups for Tcl
        news:comp.lang.tcl.announce
        news:comp.lang.tcl