Georges Ko <gko@gko.net> writes:

>     Hello,
>
>     As I have a lot of mail and news groups, I have written some quick
> and dirty code to display my own notes below some groups so that I
> don't have to remember things such as:
>
>     - groups where I'm waiting some responses
>     - mail I have to reply to
>     - threads to follow
>     - ...
>
>     without having to enter the groups...
>
>     Examples:
>
>      0  1956:[3] gmane.emacs.gnus.general  
>                      > Thread to follow: Group buffer with user notes
>      0* 1162:[3] nnml:mail.Personal  
>                      > Wait feed back from Mary
>                      > Answer Eric's mail before 10/6
>
>     If I hit C-c C-e on the group line (or in the Summary buffer),
> I'll edit some file named the same as the group in some directory,
> which contains the notes for that group...
>
>     Has someone written something similar?

No, but I use PlannerMode, which, when I make a to-do item or a note
while looking at a message in Gnus, creates a hyperlink in the to-do
list that leads back to that same message. Not exactly what you are
talking about, but serves the same purpose for me. 

http://www.emacswiki.org/cgi-bin/wiki?PlannerMode

-johnsu01