Web Based Brokerage Houses

DLJ Direct: $20 per trade up to 1000 shares $0.02 per share thereafter
Datek: $10 per trade up to 5000 shares
$20 per month for Nasdaq quotes for Professional Users
E*Schwab: $30 per trade up to 1000 shares $0.03 per share therafter
E*Trade: $15-$20 per trade up to 800 shares
Gomez.com The E-Commerce Authority: Internet Trade Brokerages Reviewed
Discount Stock Brokers Ranked: Discount Stock Brokers Ranked