I'm a newbie to blackhat concepts but I think one reason why proxies are used is to have another IP address that could be used and if it gets banned by a site, oh well, just go get another proxy. I was thinking about having proxies for FB user accounts and I thought it'd sure be nice to have an unbannable IP address. I know that if you use a mail server like yahoo to spam other mail servers, the other mail server won't ban yahoo's IP address so you can just continually create new yahoo accounts if you want when your address gets banned (Either by yahoo or the other mail server), but if you host your own server with its own IP address to send out spam, your IP address is probably going to get quickly blacklisted. What are some unbannable IP addresses? I thought places where there are a TON of facebook users would probably not get blacklisted, like microsoft's IP or libraries, so if you had access to those networks, your IP would never get banned. Of course, delete cookies and all that... Is my thinking sound or am I imagining things (again)? If this is true, what are some unbannable IPs (Like networks that would never get banned)?