Aditional links

Brass

• International Trumpet Guild
• International Trombone Association
• International Horn Society
• International Tuba Euphonium Association

Saxophone

• saxophone.org

Woodwind

• The International Clarinet Association
• International Double Reed Society
• International Flute Society - LiveJournal

Percussion

• Percussive art Society
• Seattle World Percussion Society

Composition

• International Society for Contemporary Music
• Society of Composers

Orchestras

• Berliner Philharmoniker
• Boston Symphony Orchestra
• Chicago Philharmonic Orchestra
• London Symphony Orchestra