Creative Commons and Yahoo! go together to offer search tools for searching content across the Web that has a Creative Commons license. If you do not know what creative commons is and how it works, this page from the Creative Commons site provides a great overview. The comics the site provides is interesting and clear to illustrate the ideas.

Yahoo! Creative Commons Search Beta

Why is this search different?
This Yahoo! Search service finds content across the Web that has a Creative Commons license. While most stuff you find on the web has a full copyright, this search helps you find content published by authors that want you to share or reuse it, under certain conditions.

Creative Commons Search

Full copyright applies to most stuff on the web. But this search helps you find photos, music, text, and other works whose authors want you to re-use it for some uses — without having to pay or ask permission.