EconModel currently has the #1 ranking on google.com for
Basic Supply and Demand
Keynesian IS/LM Model
The Classical Model
Two Goods - Two Prices
Who Pays a Sales Tax?
The Cobweb Model
Inventory-Based Pricing
Monopoly / Monopolistic Competition
Intertemporal Substitution
Supply of Labor
Classic Economic Models
Other high EconModel google.com rankings (rank in parentheses):
Simple Keynesian Model (2)
Mundell-Fleming Model (3)
IS/MP Model (2)
Perfect Competition (5)
Demand for Labor (2)
Labor Supply (6)
Real Business Cycles (7)
Price Discrimination (9)
Animated Phillips Curve (2)
"Is the Recession Over?" (11)
Income Taxes and Transfer Payments (3)