CS Unplugged is a project that provides free games and activities to communicate Computer Science concepts to students of all ages.
For more information, see http://csunplugged.org
(after 3 views you will be prompted to create a free account)
"PBS LearningMedia™ provides educators with strategies, tools, and professional development resources needed to fully utilize digital learning. It offers schools, districts, and states a cost-effective solution for seamless media integration and customization, including:
State standards alignment
Student access and class accounts
Robust user management
Comprehensive analytics
Content management system"
Creaza offers you an integrated, web-based toolbox for creative work, both at school and in your free time. You use the toolbox along with various fully developed thematic universes: historical periods, fairy-tales, fantasy worlds, and current challenges, such as climate/environment.