The Firefox Knowledge Base (also known as SUMO, or support.mozilla.com) launched as alpha, with all content licensed under CC Attribution-ShareAlike. There are lots of really practical uses of this great content allowed under the license — for example, an IT department, school, or NGO creating training materials covering specific browser tasks.

For example, the Knowledge Base article on managing the Firefox search bar, which includes CC Search in its default list of available search engines.