Recorders

http://www.mymusicclass.com/recorder/index.html

Treble Clef

(This is a downloadable game that will teach you the notes of the treble clef)

http://www.topshareware.com/Happy-Note!-Tetris-download-2758.htm

Rhythm Studies

http://www.emusictheory.com/drillRhythmPerf.html

http://www.emusictheory.com/drillRhythmDict.html

Families of Instruments

http://www.dsokids.com/2001/instrumentchart.htm