Glype Proxy is a free web-based proxy script written in PHP. It allows webmasters to quickly and easily set up their own proxy site. There is a huge market for these proxy websites that allow both anonymous browsing and bypassing network filters at school, college or work.
This CGI script acts as an HTTP or FTP proxy. Through it, you can retrieve any resource that is accessible from the server it runs on. This is useful when your own access is limited, but you can reach a server that in turn can reach others that you can't. In addition, the user is kept as anonymous as possible from any servers. Common uses include: anonymous proxies similar to The Anonymizer, other personal uses, VPN-like functionality, and others. It's very simple to install, and very configurable.
Zelune is a free to download web proxy script, allowing you to hide your identity, and security, while browsing the web. Web proxy scripts also allow you to bypass firewalls on the network, commonly used to view websites that are normally blocked at school or work. The zelune proxy script is known as "the world's fastest proxy script", because, unlike it's competitors, zelune uses cURL to download the files through the proxy.
Surrogafier is a PHP proxy script which is easy to install and provides a 3 tier web proxy. It's free to use and distribute! Features include the ability to remove cookies, the HTTP referer field, the HTTP user-agent field, scripts on the page, and objects, altering the user-agent string to whatever you please, and tunnelling your proxied traffic through a second proxy.