TechCrunch reports: [edited]
The engine pulls in photos from Flickr, 500px, Rijksmuseum, the New York Public Library and the Metropolitan Museum of Art as its initial sources.
In addition to having a more modern look-and-feel, the new CC Search lets you narrow searches by license type, title, creator, tags, collection and type of institution. It also includes social features, letting you make and share lists of favourite images, as well as add tags and favorites to individual items.
You can save your searches for quick access in the future and the engine also makes it easier to apply the necessary attribution, when available, by offering pre-formatted copy you can click to copy and paste.
The beta search engine is available here.