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.purl.org/NET/akupries/c.l.t.welcome.html

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

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

    An organized Tcl resource center can be found at
        http://purl.org/tcl/home/software/

    They also keep info to convince your boss Tcl is a good thing
        http://purl.org/tcl/home/scripting/

    ProcPlace has a comp.lang.tcl contributed sources archive
        ftp://ftp.procplace.com/pub/tcl/

    Cameron Laird tracks many Tcl/Tk references of interest
        http://www.phaseit.net/claird/comp.lang.tcl/

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

    Some day, a resurrected site for incr tcl and some other packages
        http://www.tcltk.com/

    The comp.lang.tcl.announce post archives are at
        http://groups.yahoo.com/group/tcl_announce/ 

    A Usenet announcements newsgroup for Tcl is
        news:comp.lang.tcl.announce .