This website opens a window into the world of amazing photographs. Just type in a word or topic and you will be amazed at the images presented.
http://taggalaxy.de/
This website is amazing for creating posters and presenting information. You can also comment on others works.
http://edu.glogster.com/
Give your brain a workout and try some of these math games.
http://www.mathplayground.com/
Create you own speaking Avatar.
http://www.voki.com/
Thesaurus and Dictionary. Very Cool Sight
http://www.visualthesaurus.com/trialover/
Try out some of the cool games on MATH FROG
http://cemc2.math.uwaterloo.ca/mathfrog/
Math is Fun
http://mathisfun.com/