Directory Groups
----------------

   If you have a directory that has lots of articles in separate files
in it, you might treat it as a newsgroup.  The files have to have
numerical names, of course.

   This might be an opportune moment to mention `ange-ftp', that most
wonderful of all wonderful Emacs packages.  When I wrote `nndir', I
didn't think much about it--a backend to read directories.  Big deal.

   `ange-ftp' changes that picture dramatically.  For instance, if you
enter `"/ftp.hpc.uh.edu:/pub/emacs/ding-list/"' as the the directory
name, ange-ftp will actually allow you to read this directory over at
`sina' as a newsgroup.  Distributed news ahoy!

   `nndir' will use NOV files if they are present.

   `nndir' is a "read-only" backend--you can't delete or expire
articles with this method.  You can use `nnmh' or `nnml' for whatever
you use `nndir' for, so you could switch to any of those methods if you
feel the need to have a non-read-only `nndir'.