Last updated on 8 February 2017
CC Search It's a nice surprise. These are:a brand new search engine set up by Creative Commons to help you find and use free images for your blogs, sites, or school publications.

A search engine that will allow you to discover thousands of works that can be copied, distributed, modified, remixed or adapted respecting copyright laws.
CCsearch is still in the testing phase, but already presents itself as a very convincing tool that only needs to grow. For the moment CCsearch will find its images in the collections of the Rijksmuseum, the New York Public Library, the Metropolitan or services such as Flickr or 500px. In all, nearly 10 million images are referenced.

The tool is in the classic form of a search engine. Indicate what you are looking for and start the engine. By default, all sources will be searched, but you can also select one or more of them. Other filters are at your disposal. You can request images that you can edit or use as you see fit or images for commercial use.
CCsearch is pretty quick in its research. Each result can be displayed full page. The engine will tell you for each image its title and author. It will also tell you how to properly credit it with a text to copy or an HTML code. Practical.

CCsearch can be used freely without even needing to register. By registering, it only takes a few seconds, you will have the right to create and save lists of images, you will also be able to apply tags to them or put them as favorites to better then find them.
Great and of course free.
Link: CCsearch