Here are some links that you might find helpful:

Wayne Highlands School District Website
Funbrain
Journey North Tulip Project (we will be involved with this year)
Knowledge Box Kids (we use the Knowledge Box in school - here is a sample)
Everyday Math Games (just like the ones we play in school)
Sunrise and Sunset Times (part of a year long Math project)
Daily Extreme Temperatures (part of a year long Math project)
Nettrekker (a great search site - see me for the password)
Discovery School
Internet 4 Classrooms (interactive activities listed by grade level and subject)
Multiplication Games
Math Playground
Time Practice
Famous Leaders for Young Readers