"The BBC's picture editor Phil Coomes has a long, excellent feature on the open education photography classes offered by Jonathan Worth and Matt Johnston through Coventry University. The course is open to anyone in the world, via webcast, and runs with up to 35,000 students. The class focuses not just on technique, but on the role of photographers in the 21st century, when everyone has a cameraphone, and when controlling copies of photos on the net is an impossibility."
Search for CC pictures with Wylio, which allows you to choose the size of the image you want, and gives you the attribution all wrapped up in an embed code - very nice.