One of the best is www.ted.com.

Another that I have suggested many times is www.engvid.com.
www.elllo.org is also helpful 

Can you access www.nickjr.com/kids-videos ?  It might be too basic, but there a tv shows like Dora the Explorer you could watch.  The language is very simple because the shows are meant for young children :)

I think the best is http://www.littlefox.com/ , there are differentes levels, from 1-6 try it and tell me later.

Can you access the BBC english language learning website? 

http://www.bbc.co.uk/worldservice/learningenglish/

Thanks for helping, for this a website littlefox.com I don't know exactly hiw to use it coz its want log in