For years savvy internet marketers have been using "opt in" or permission marketing to gather leads by email in exchange for information that should be valuable to those that opt in.
You've probably done it before knowingly or unknowingly where you give a website your email, and possibly even more information for a free e-book or some other type of information that has potential value to you.
I've written about the potential end of email "opt in" marketing at my direct response blog, along with Brad Richdale Business. I hope you enjoy the story http://bradrichdale.blogspot.com/2013/08/are-perry-marshall-joe-polish-and-frank.html
written by Brad Richdale Author
This story also appears at http://investing.businessweek.com/research/stocks/private/snapshot.asp?privcapId=47286685