Surfmous is a free to use proxy server which allows persons behind firewalls/proxy servers to access restricted websites.

It has the following features:

• URL Entry Space
• Enable/Disable mini-URL on each page
• Enable/Disable remove client side scripting
• Enable/Disable cookies to be stored
• Enable/Disable to show images on browsed pages
• Enable/Disable to show actual referring websites
• Enable/Disable using ROT 13 encoding
• Enable/Disable using base 64 encoding
• Enable/Disable strip meta information tags from pages
• Enable/Disable strip page title
• Enable/Disable sore cookies for this session only
• Space for a banner advert as well as Google Adsense
• Hide/Show options
• User membership
• Database Management
• Newsletter
• Template feature for T&C, Privacy, Advertising & Footer
• Configurable “Contact US” email address

With this script you can add members. Members can be a pay feature, and in return they will not be subject to the adverts shown per page.
In addition you can send newsletters to your members as an additional revenue stream.