Slot Systems
slot-systems.com
Tests betting systems and records results.
Winning Slot Secrets
casino-slot-gambling.com
Method and system on how to win.
Slot Machine Report
slot-report.com
Designed to increase winnings and reduce overall loses.
EGDsecrets.com
egdsecrets.com
Offers a guide containing tips. A technician explains how they work, and how to get better odds.