The germans are designing many beautiful lookings and funny website for their children 
So on the screens, play with your children and learn some german!
:yes:
google for kids:
http://www.blinde-kuh.de/
Spiele - games
Malen - painting, drawing
Lernen - learning
Kinderseiten - websites for children
Geschichte - history
Musik - music
Filme - films
Fernsehen - TV
Tiere - animals, pets
Wissen - knowledge, science
II. google for kids:
http://www.fragfinn.de/
TV for the little ones:
http://www.wdrmaus.de/
The one I loved, when I was young:
http://www.wdrmaus.de/kaeptnblaubaerseite/
Klick on the TV to see videos.
Many quizzes, maths, german… With really cool, nice monsters!
http://www.mompitz.de
Other nice sites:
http://www.kidsville.de/
http://www.labbe.de/
http://www.kindernetz.de
http://www.geo.de/GEOlino/index.html
Nice site about writing cursive:
http://www.schulschrift.ch/
Great site (Vorschule → Geschichten: mp3 of the stories)
http://kidsweb.at
Free learning programm:
http://childsplay.softonic.de/
Learning to write programm
http://segmenti.softonic.de/
Children’s songs:
http://www.youtube.com/user/surakinder?feature=watch
http://www.youtube.com/watch?v=X7e71XbzywE
http://www.youtube.com/watch?v=MHr7l6uTn5E
http://www.youtube.com/watch?v=IYDsPERmqh8
http://www.youtube.com/user/TamTamErlebnismusik?feature=watch
http://www.youtube.com/watch?v=M0GbB90--Rw&feature=related
http://www.youtube.com/user/Singmituns#g/u
http://www.youtube.com/results?search_query=trickfilm&oq=trickfilm
For the little ones:
http://www.youtube.com/results?search_query=die+sendung+mit+dem+elefanten
For kindergarten-kids:
http://www.youtube.com/results?search_query=die+sendung+mit+der+maus
school kids (funny scientific topics):
http://www.youtube.com/results?search_query=löwenzahn
News for kids:
http://neuneinhalb.wdr.de
http://www.tivi.de/fernsehen/logo/start/index.html
Links to other sites:
http://www.bayswaterps.vic.edu.au/lote/kinder/kinderseiten.htm