Free Money with zWallet: Why Hotmail, AOL, and Yahoo Should Be Paying You 1.0
From the developer: "Free email services like Hotmail, Yahoo, and AOL pretend they're doing you a favor by providing you with an email account at no charge. In truth, these sites make a lot of money off you by selling advertising space on your computer screen! This book offers an alternative which will put cash in your pocket for reading your email."