[davidw]: It would be nice to see at least a simple example included for all Tcl man pages (or at the very least point to another page including an example).

Here is the current state of things:
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'''Files with examples:'''
 after.n     exec.n       glob.n     lassign.n  lreplace.n  rename.n  subst.n
 array.n     fcopy.n      global.n   lindex.n   lsearch.n   return.n  switch.n
 bgerror.n   fileevent.n  http.n     linsert.n  lset.n      scan.n    time.n
 break.n     for.n        if.n       list.n     lsort.n     seek.n    uplevel.n
 catch.n     foreach.n    incr.n     llength.n  open.n      set.n     while.n
 continue.n  format.n     join.n     lrange.n   puts.n      socket.n
 encoding.n  gets.n       lappend.n  lrepeat.n  read.n      split.n
'''Files without examples:''' 
 Tcl.n     dict.n        filename.n  namespace.n   registry.n  unknown.n
 append.n  eof.n         flush.n     package.n     regsub.n    unload.n
 binary.n  error.n       history.n   packagens.n   safe.n      unset.n
 case.n    eval.n        info.n      pid.n         source.n    update.n
 cd.n      exit.n        interp.n    pkgMkIndex.n  string.n    upvar.n
 clock.n   expr.n        library.n   proc.n        tcltest.n   variable.n
 close.n   fblocked.n    load.n      pwd.n         tclvars.n   vwait.n
 concat.n  fconfigure.n  memory.n    re_syntax.n   tell.n
 dde.n     file.n        msgcat.n    regexp.n      trace.n
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These are automatically generated (script below).  Some of these do have examples, such as msgcat and tcltest.  Others sort of do, but a functional bit of code that runs and demonstrates the command is always welcome.

'''Exception List''': The list of files that really do have (good) examples: binary.n msgcat.n tcltest.n.

and the list of files that describe commands that are too simple to really need examples (or that have them elsewhere): cd.n close.n

Adding an example doesn't take much time, and lots are already available on the wiki.  All you have to do is submit a patch to sourceforge.  The man page markup looks like this:

 .SH "EXAMPLES"

 A time server:

 .CS
 proc Server { channel clientaddr clientport } {
     puts "Connection from $clientaddr registered"
     puts $channel [clock format [clock seconds]]
     close $channel
 }

 socket -server Server 9900
 vwait forever
 .CE


I used this code to check:

 package require fileutil
 package require struct

 foreach res [fileutil::grep ".SH.*EXAMPLE" [glob *.n]] {
     lappend examplefiles [lindex [split $res :] 0]
 }
 set examplefiles [lsort $examplefiles]

 set allfiles [lsort [glob *.n]]
 set noexamplefiles [lsort [struct::set difference $allfiles $examplefiles]]

 puts "Files with examples: $examplefiles"
 puts ""
 puts "Files without examples: $noexamplefiles"
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[DKF]: Remember that some [Tk] docs need examples as well, though I'd tend to say not the widgets, as they're better demonstrated as part of the general [widget] demo.

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[AM] What about Wiki pages that show a particular package in action? I mention it here because it seems a nice starting place for it ... For instance:
   * the http package is nicely illustrated with the page on the [wiki-reaper]
   * [A little Unicode editor] might serve as an illustration for dealing with Unicode 

[DKF]: I'm trying to keep examples ''very'' short.  Both of those pages are several times too long for my current limit.
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[Category Documentation]