Brian Tracy (My Favorite)
http://www.briantracy.com/newsletter/default.aspx
Dennis Waitley (Psychology, Leadership)
http://www.deniswaitley.com/email_maint3.php
Jim Rohn
http://www.jimrohn.com/
Jeff Gitomer (Sales)
http://www.gitomer.com/sales-magazine/Sales-Caffeine.html
