Sites from top to bottom are:
http://switchzoo.com/
http://www.funbrain.com/
http://kids.nationalgeographic.com/
http://pbskids.org/
http://reading.ecb.org/student/entry.html?login=
http://www.starfall.com/
http://www.seussville.com/
http://www.storylineonline.net/
http://www.abcya.com/
http://www.rif.org/kids/leadingtoreading/en/leadingtoreading.htm
Happy Learning!!