Do you have a good link to add to this page? Please let us know!
The big ones:

FCPS/Stuart HS links:
Fairfax County Public Schools
Stuart High School
Stuart High School Choir
Directions to Other Virginia Schools
Directions to J.E.B. Stuart High School
Stuart Raiders Sports
Stuart HS PTSA
Music/band-related links: - instrument-specific tips and free sheet music
Audacity - excellent free recording software. to make mp3's, get the LAME encoder here.
Brass Fingering Charts
Brian Kay: Resources for Brass Players
Drum Corps International
Good Ear
Jazz Instructional Site
John Mackey - the composer we commissioned in spring 2009; streams of his music
Interactive Composer Database
Metronome Online
Midwest Clinic Band Performance Archive - streaming videos of great bands
Music Interactive
Musicovery - fantastic music theory instructional site. includes a staff paper generator.Another source of free blank staff paper here.
Rudiments Online
Solfege- Ear Training Online
Tempo Perfect- Metronome Software
Texas School Music Project Band Index - good instrument-specific articles and tips
Tuner Online- A downloadable chromatic tuner
Vic Firth: resources for percussionists
Virginia Band & Orchestra Directors Assocation
Woodwind Fingering Guide - great site! alternate and trill fingerings, etc.
Worldwide Internet Music Resources - AMAZING, HUGE collection of music-related links, hosted by Indiana University

Websites of Publishers With Free Recordings:
C-Alan Publications
C.L. Barnhouse
Beriato Music
G &M Brand
Curnow Music Press
Eighth Note Publications
Faber Music
Carl Fischer
Gobelin Music Publications - online sheet music store with mp3's & streaming audio of many band pieces
Kendor Music
Neil A. Kjos
Hal Leonard
LudwigMasters Publications
Manhattan Beach Music - publisher of Ticheli and other great composers; free mp3's
Studio Music
TRN Music Publisher
Other: - a wonderful daily habit to get into...go check it out - now with different subjects! - the most game-like of these charity sites - kind of addictive