Free Shipping

These two words were the most used on Internet to increase online purchasing. According to this AdAge article from Marc Brownstein, these game changing human behavior is totally up. Does that justifies the abnormal increase of online purchasing? Specialists are surprised, e-commerce marketers are banging their heads and trying to learn this new trend and how to cherish it for better results.
Cyber Monday Sales increased 13.7% in 2009. On a crisis year.

Shopping Online is a trend you need to grab on. Oh, and by the way, consider "free shipping" as a marketing trigger.