S-email-marketing
Email Marketing is still the King!

According to the  Direct Marketing Association's Power of Direct Economic Impact Study (October 2008), every dollar spent in email marketing delivers a $45.06 return on investment! And, every dollar spent on non email Internet marketing delivers $19.94!

Here is a bit more detail and opinion by Ken Magill in DIRECT.

If you're looking to save and make more of your marketing investment payoff, work on bullet-proofing your email efforts instead of jumping into the latest and greatest new marketing flavor of the month.