Download music video online !

H i....
There are many sites which are providing free you tube video downloads  !
like:
Keepvid.com   
you have to just copy and past that youtube video url to this site.
but i found a new site which look like as a you tube the site is : 
http://savetube.com  
other sites  are :
http://videosnstuff.com/

http://www.akmusicvideo.com/

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