Super simple songs: http://www.youtube.com/results?search_query=super+simple+songs&oq=super+simp&gs_l=youtube.3.0.0l10.54965.56890.0.58356.10.7.0.3.3.0.162.775.4j3.7.0...0.0...1ac.1.7kSDMyenS48
http://learnenglishkids.britishcouncil.org/en/
http://freekidsbooks.org/