http://www.sadlier-oxford.com/phonics/student.cfm
http://www.tampareads.com/phonics/mr-ed/index.htm
http://www.learninggamesforkids.com/spelling-games/short-vowel-games.html
http://www.abcfastphonics.com/vowel-rules.html
http://www.education.com/games/phonological-awareness/