http://www.trombone.org/forum/ This is a Trombone Forum where people share their ideas about playing the trombone. Visit 'Music & Recordings' and 'Trombonists - 'cause I'm the Moderator. See you there!
http://www.pgmusic.com/bandbox.htm Band-in-a-Box intelligent Music Accompaniment Software for creating Jazz MIDI Music. I use this for the first stages of an arrangement. I also use it for practicing so that I can jam with Pops or Bird.
http://www.geniesoft.biz/ Score Writer notation software for creating and printing sheet music fast. I use this for producing a final jazz arrangement and then printing the individual parts of the score.
This is John Birchall's excellent site for any aspiring students of Dixieland Jazz - in fact any kind of jazz!. It's all about how jazz is played and there are three projects -
Improvisation Lessons Louis Armstrong Transcriptions 'Band-in-a-Box' Files of jazz tunes
The best link to Traditional Jazz Bands (Dixieland) and other resources that I know of.
http://www.buildsoft.com.au/ Just in case any of my daygig contacts have strayed onto the wrong site, this is a link to Buildsoft Pty Ltd for Building and Construction Industry Estimating Software.
http://timber.net.au/ And this is the other daygig site where I have an interest in the subject matter - that of The Timber Development Association, NSW.