Musical Land
http://madlove.giveu.net
It is a Korean site. I can get some information about the musical,
especially definition and history, in this site.

Musical Blog
http://blog.naver.com/4music.do
There are many pictures of Broadway and West End.
The master of this blog is a big fan of musical.

Broadway.com
http://www.broadway.com
This site contain very vivid information.
I can book musical ticket directly(musical in broadway), in this site.

livebroadway.com
http://www.broadway.org
The site you are looking for the Official Webiste of the League of American Theatres and Producers, Inc.

Getty Images
http://creative.gettyimages.com
There are various images in this site.
I can search using keywords, concepts, image numbers..etc.

SORIBADA
http://www.soribada.com
I can get some mp3 files in Soribada.