Amazon EC2

Gentoo can run on Amazon Elastic Compute Cloud (normally, simply known as EC2).

Original work was done by Dowd & Associates, with further development by rich0.

Regions available
At the time of writing (November 2012), the following regions were available:

Asia Pacific
 * Singapore
 * Tokyo, Japan
 * Sydney, Australia

Europe
 * Ireland

North America
 * North Virginia, USA
 * Oregon, USA
 * Northern California, USA

South America
 * São Paulo, Brazil