What are some good anonymous / open proxies for the U.S.? ?

I am looking for IP addresses, not URLs (those not usefyl in my case). I just need a good list of free, U.S. Web address for anonymous surfing proxy IPs and / or myspace and youtube unlocked 123.456.789.10 eg, valid only. Please do not post anything false, I know one when I see a real IP. AND I have no intention of doing anything illegal with this information, so please do not delete my question! =) Thank you all ~ ~ ~ ~

They work only for some short time any way. m

Clearmy.INFO: Before I surf makes you anonymous in every sur