Fun & Games:
Arkadium - Free crossword puzzles and games
Virtual Museum Tours - Check out this list of the best Virtual tours of museums around the world
Explore National Parks - With Google Earth
San Diego ZOO - Live webcams of your favorite animals
Learning
Escondido Digital Library - Browse hundreds of ebooks and audiobooks
San Diego County Library - Elibrary
Ted Talks - Ideas worth spreading
EdX - Free college courses from top ranked schools
Duolingo - Free language learning