The majority of Usenet-users prefer bottom-posting. In addition to
bottom-posting, it is customary to leave out non-relevant parts of the
message with regard to the reply, and to put the reply directly beneath
the quoted relevant parts. If you want to know more about writing new
posts. Check out this site:

http://www.xs4all.nl/~hanb/documents/quotingguide.html

Bottom-posting is proper Usenet Etiquette. Check out the following URL:

http://www.faqs.org/rfcs/rfc1855.html