Flickr Storm is similar to flickrCC. You simply run a search, click on a thumbnail and the photo appears on the right. Make sure to have your students click on the advanced search feature which allows them to limit their searches to Non-Commercial and Share Alike photos. One nice feature about Flickr Storm is the "Add to Tray." You can add several photos to your tray and then when you open your tray, all the photos are there in large sized format along with the attributions.