Yeah, you can use http://proxy.org/ . Also there are other sites, wherein you can switch the mode on while surfing as anonymous, which allow you to upsteam the lenght of the nades while watching the videos.
I also stumbled on to few sites, but I am not allowed to post those here.
Cheers!
If a website shows an error which looks like you were blocked from viewing it then I suggest you use an online proxy service which allows you to access blocked websites.