Instrument care, repair, and maintenance:
http://www.sharmusic.com/Pages/How-To/Instrument-Care-and-Maintenance/
"Symphony for kids" websites:
http://www.tucsonsymphony.org/kids/
http://www.sfskids.org/templates/splash.asp
http://www.nashvillesymphony.org/nsokids/
http://www.nyphilkids.org/main.phtml?
http://austinsymphonykids.org/conduct.html
For Everybody:
http://www.classicsforkids.com
Instrument-Specific:
Violin:
-scales, exercises, history, lessons, etc.
http://www.beginnerviolintips.com
Viola:
-scales, exercises, history, lessons, etc.
Viola Note Reading: http://courses.wcupa.edu/frichmon/usetech/musicalflashcards/acnotes.html
http://americanviolasociety.org/the-avs/welcome
Cello:
-scales, exercises, history, lessons, etc.
http://www.celloprofessor.com/Beginning-Cello.html
Bass:
http://www.stringbassonline.com
-scales, exercises, history, lessons, etc.
How to Read Music:
http://datadragon.com/education/reading/
-Practice reading notes, rests, note values, scales, intervals. Lessons, exercises,
Composers:
http://www.classical.net/music/composer/
Music Printing History:
http://www.musicprintinghistory.org/
Listen to Music:
http://www.classicsforkids.com/music/
Look up "classical", "symphony", "Beethoven", "Mozart", "Brahms", "violin Classics", or anything like that on any online radio player, such as Pandora: http://www.pandora.com
Watch Performances:
On "YouTube":
http://www.youtube.com/user/symphony?blend=1&ob=4
http://www.youtube.com/watch?v=Tqiro1kdRlw
https://www.youtube.com/watch?v=18SJYcWCmWo
https://www.youtube.com/watch?v=tw0Ua7TRi6c
https://www.youtube.com/watch?v=j7QmoTDRFSU
https://www.youtube.com/watch?v=o1dBg__wsuo
viola concerto:
https://www.youtube.com/watch?v=yMpzPMkrALM
cello concerto:
https://www.youtube.com/watch?v=FVKb3DwPFA8
bass concerto:
https://www.youtube.com/watch?v=Dt-bNf6h0tI
https://www.youtube.com/watch?v=V2FGE8h8YSw
On You Tube, here are some search ideas:
violin
viola
cello
symphony
string quartet
beethoven
bach
mozart
brahms
Various strings-related topics: