Reference Tools:
Ask Dr. Math
Ben's Guide to U.S. Government
Bubblesphere
CIA World Factbook
CyberKids
HomeworkSpot
KidLit
Kidtopia
Scholastic
Smithsonian for Kids
Art
Artsonia
Google Arts & Culture
All Subjects
LizardPoint
PBS Kids
Venn Diagram creator
Typing Practice
RapidTables
Typing.com
TypeTastic
Language Arts
ABCya.com
Accelerated Reader
Building Language for Literacy
Clean Up Your Grammar
Quill
RandomHouse Kids
Storyline Online
Word Invasion
Writing Tips
Math
Cool Math Games
Free Math worksheets
FunBrain Math
IXL-Math
Kakooma
Math Fact Cafe
Math Goodies
Math Playground
Math Worksheet Center
Matific
Math in Focus - Kindergarten videos
Math in Focus - Grade 1 videos
Math in Focus - Grade 2 videos
Math in Focus - Grade 3 videos
Math in Focus - Grade 4 videos
Math in Focus - Grade 5 videos
Music
Phil Tulga Music Activities
Chrome Music Lab
PBS Kids Music Games
Classics for Kids
Dallas Symphony Orchestra for Kids
Kids Music Corner
The Learning Station
GoNoodle
Science
Sick Science
National Geographic Kids
Social Studies
Ben's Guide to the U.S. Government
Oregon Trail
General Tools:
Classroom Timer
Creative Commons
Finding Dulcinea
Pics4Learning
SweetSearch
WolframAlpha
Google Resources:
Google Apps Learning Center