"Automating Twitter To Make Cash"
This book will teach you how to get started with earning money with twitter by just doing 10% of the work after setup that 10% of the work is just following and unfollowing, rest all 90% is automated.
Again there are four methods to earn but this time they are with detailed explanation and better methods are included too.
After reading this book making $100 a day with time will be child's play
Salespage:
http://forums.digitalpoint.com/showthread.php?t=1486676
