http://fmf.fwn.rug.nl/~anton/topposting.html
http://www.blakjak.demon.co.uk/gey_chr0.htm
http://www.blakjak.demon.co.uk/gey_stv0.htm
http://www.geocities.com/nnqweb/nquote.html
http://www.greenend.org.uk/rjk/2000/06/14/quoting.html
http://www.html-faq.com/faq.php?clue=topposting
http://www.ietf.org/rfc/rfc1855.txt
http://www.malibutelecom.fi/yucca/usenet/brox.html
http://www.newsreaders.com/
http://www.planefacts.ndirect.co.uk/group/advice/
http://www.star-one.org.uk/computer/format.htm
http://www.usenet.org.uk/ukpost.html#s3
http://www.uwasa.fi/~ts/http/quote.html
http://www.caliburn.nl/topposting.html