A lot of katakana on Quizlet
http://quizlet.com/subject/katakana/



http://www.learn-hiragana-katakana.com/japanese-alphabet-typing-game-katakana/


http://www.studystack.com/flashcard-204310

http://www.studystack.com/studytable-107967


http://www.genkienglish.net/kokugo/katakana1.htm


http://www.genkienglish.net/kokugo/katakana2.htm


http://www.genkienglish.net/kokugo/katakana3.htm


http://www.genkienglish.net/kokugo/katakana4.htm


http://thejapanesepage.com/beginners/katakana


http://web-japan.org/kidsweb/language/katakana/index.html


http://www.umich.edu/~umichjlp/Katakanapro/index.html


http://www.kanjistep.com/en/online/katakanasteps/intro.html


http://www.chipchat.com/NihonGo/protect/KatakanaDrill.html


http://www.realkana.com/katakana/



http://www.kanachart.com/cgi-bin/index.pl?katakana&a&1


http://genkienglish.net/genkijapan/katakanasong.htm


http://www.csus.edu/indiv/s/sheaa/projects/genki/kata_main.html


http://www.fll.purdue.edu/ultimate/katakana.htm


http://genkienglish.net/genkijapan/katakana1.htm


http://www.sf.airnet.ne.jp/~ts/japanese/table_k.html


http://www.umich.edu/~umichjlp/Katakanapro/index.html


http://www.manythings.org/q/kana.php?u=katakana


http://www.languageguide.org/im/alpha/jp/katakana.jsp


http://www.languageguide.org/im/alpha/jp/alpha_quiz.jsp


http://www.languageguide.org/im/alpha/jp/katakana_slideShow.jsp



http://learn-hiragana-katakana.com/typing-katakana-game/