JAFI Education Department
Pesach Quiz, interactive (6 questions)
http://www.jafi-ed.org.il/50/act/quiz/pesach.html

Absolutely For Free Passover Celebrations!
http://www.theholidayspot.com/passover/

Amit
Resources and More links to stuff
http://www.amit.org.il/learning/english/pessach/index.htm

Anshe Emes (L.A.)
Chometz hunter (online, interactive)
http://www.anshe.org/chometz.htm

Elimelech David Ha-Levi Web, Inc.
Large selection of quizzes, puzzles, word games for different levels
http://www.angelfire.com/pa2/passover/passover-games/index.html

FunTrivia
Pesach Trivia, interactive
http://www.funtrivia.com/playquiz.cfm?qid=71696&origin=

Haggadahs-R-Us (Shalom Hartmann Institute)
Ideas/games to try out at the Seder for young children
http://www.haggadahsrus.com/Essay2YoungChildren.htm

500 Years of the Four Children in Haggadot
http://www.haggadahsrus.com/4childrenGallery1.htm

Nurit Reshef
Pesach quiz, self-grading, interactive
http://www.bus.ualberta.ca/yreshef/pesach/pesachquiz.html

Pesach playroom
http://www.bus.ualberta.ca/yreshef/pesach/playroom.html

Ohr Somayach
Fun stuff for Pesach (different ages, adult)
http://ohr.edu/yhiy.php/holidays/pesach/fun_and_poetry/

OU
3 level Pesach quiz online, interactive
http://www.ou.org/jewishiq/pesach/enter.htm

Passover Net (Chabad)
Interactive online games
http://passover.net/scripts/tgij/paper/passoverTemplate.asp?ArticleID=1925

Torah Tots
Pesach wordfinds, jigsaw puzzles, other games
http://www.torahtots.com/holidays/pesach/pesgames.htm

Coloring pages - 3 series
http://www.torahtots.com/holidays/pesach/pescolor.htm