Gramophone Magazine
Naxos: The World's Leading Classical Music Label
Scoring Sessions
Sheet Music Plus
Shar Music
Petrucci Music Library- Free Scores
Film Music Magazine
http://www.cello.org/
http://www.abm-enterprises.net/
http://www.americancomposers.org/
http://www.sheetmusicfox.com/composers.html
http://www.accuclassical.com/
http://classicalmusicblog.com/
http://www.mutopiaproject.org/
http://www.classical.com/beginnersguide