imgur.com
photo hosting

blender.org
3D animation program
install

anim8or.com
animation program
install

animoto.com

printwhatyoulike.com
book marklet
adds bookmark to bookmark bar, highlights part of the page, screen capture feature

qwiki.com

wix.com
website creation

edmodo.com micro blogging in the classroom Facebook for the classroom

weebly.com
easy free website creation. education portal available.