Turtle Diary is a wonderful, must try site packed with a huge collection of online interactive games and activities for young children, including maths and literacy resources.
http://ictmagic.wikispaces.com/Early+Years
An amazing set of resources to explore the world's oceans in a 3D virtual environment. Swim with killer whales or drift along and watch sea turtles cruise by. You can even complete missions, including exploring the deepest place in the oceans.
http://ictmagic.wikispaces.com/Science
Scholastic and Turtle Pond Interactive invite you and your class on a virtual field trip to an aquarium in Florida! Students will be introduced to an extraordinary and inspiring bottlenose dolphin named Winter, who was just three months old when she lost her tail after it became caught and mangled in a crab trap.
A coding game for little kids. I don't know about teaching them to program before they learn to read, as it claims, but I do know that many are ready and moving head to teach their kids to code and that is awesome.