Looking to add a little more stealth and a little less "Here I am, world!" to your web browsing? StayInvisible not only catalogues free proxy servers but provides tools to test proxies and information about anonymity and encryption.
Many resources that provide proxy lists provide little else. StayInvisible has lists of proxy servers as well as online tools for testing just how anonymous your connection is: proxy checkers, IP verifiers and email testers. In addition to the proxy tools they also have a proxy encyclopaedia to help you decipher the various terms used, and basic text encryption tool.
Have a favourite proxy site or program? Sound off in the comments.