How to Write Effective Mailing List Email
   Article by Matt Haughey.
   http://www.digital-web.com/articles/how_to_write_effective_mailing_list_email/

Why is Bottom-posting better than Top-posting?
   Short lesson by A. Smit and H.W. de Haan explaining how threaded conversations such as found on mailing lists are adversely affected by those who "top post" instead of "bottom post" their replies.
   http://www.caliburn.nl/topposting.html