How to run youtube?

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Youtube is very popular and i also use this for listening music and also for my study. But recently i couldn't use this site. The site is open but i can not play any program. Here in china youtube is band that's why we used brouse007.com proxy. But now the program is not run. What should i do now? Is there any other proxy or anything that will help me to watch the video there. Thanks in Advance!