Other Wonderful Resources and Teachers of Singing:

Jeanie LoVetri, World's Best Voice Pedagogue: http://www.thevoiceworkshop.com/lovetri.html

Musical Theatre Resources for College-Bound Student: http://auditioningforcollege.com

Dr. Reena Gupta is the best laryngologist (voice doctor) in Los Angeles.  She specializes in singers and professional voice users, and she is the ONLY laryngologist I recommend.  Her Speech language pathologist Amy Chapman S.L.P does amazing work.  http://www.voicedoctorla.com

Http://pianotrax.com is a wonderful resource for anyone singing or preparing musical theatre repertoire for performance or audition.  Check it out!