Tor Browser Bundle
https://www.torproject.org/projects/torbrowser.html.en

The Tor software protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning your physical location, and it lets you access sites which are blocked. The Tor Browser Bundle lets you use Tor on Windows, Mac OS X, or Linux without needing to install any software. It can run off a USB flash drive, comes with a pre-configured web browser to protect your anonymity, and is self-contained. This will be added to Deep Web Research and Discovery Resources 2013. This has been added to the tools section of Research Resources Subject Tracer™ . This will be added to Entrepreneurial Resources Subject Tracer™. This has been added to Privacy Resources Subject Tracer™.