SonicProxy

Browsing the web anonymously isn't that difficult if you're using the right piece of software and that's exactly why SonicProxy deserves a shot.
The application was developed with a single goal in mind: to allow users hide their real IP and remain anonymous while surfing the web.
Everything's impressively easy to use and SonicProxy takes care of the entire job, with minimum user interaction.
The program's GUI is minimal and only includes a few buttons to display the currently selected IP, but also to allow you to change the IP in a second and retry the connection.
SonicProxy works with the commonly used browsers, but it can also change the IP in some other programs, such as instant messengers.
As you can see, SonicProxy is quite an easy to use program, but the biggest problem is that it doesn't offer enough customization power to its users. It's indeed very user-friendly, but that may be a good thing only for rookies, as experienced users expect much more advanced features.
On the other hand, SonicProxy works okay on most Windows versions, but on Windows 7 workstations it requires administrator privileges. Otherwise, it returns an error a second after launch.
Overall, SonicProxy may attract a user or two, but it's hard to believe that it can become one of the most successful products in this particular software category. The good thing is that it's easy to use, so rookies can give it a try too.