Near Real Time Air Quality Data
National Allergy Bureau  Pollen and Spore Counts 
Pollen and Air Quality   Accuweather site 
Allerdays  Pollen report and more 

Weather Forecast Sites
Accuweather
CNN Weather Forecast
Intellicast Weather
The Weather Channel

Weather Sites for Students
Kids' Weather
Weather for Kids - Internet Resources from About.com 
Franklin's Forecast
Dan's Wild Wild Weather Page

Mathematics Resources
The Math Forum
Ask Jeeves for Kids
Math League Help Topics
Exploring Data

Books

• Monmonier, Mark. Air Apparent: How Meteorologists Learned to Map, Predict, & Dramatize Weather
• Pearce, E.A.and  Smith,C.G. Fodor's World Weather Guide
• Williams, Jack. The Weather Book

The Case of the Green Feathers (K-3) Toxrap