Spelling
http://www.coolmath-games.com/spelling-monster/second-grade-2/index.html
http://www.spellingcity.com/shepardsonli/
http://www.bbc.co.uk/skillswise/words/spelling/soundandspell/silentletters/flash0.shtml
http://www.softschools.com/language_arts/phonics/games/oi_oy_sounds.jsp