Emarketer recently came out with its predictions for 2007. Here are the highlights;

Online ad spending will top $20 billion, an increase of almost 20% from 2006.
Online video advertising will see a dramatic upturn.
Social Networking sites will see $1billion worth of advertising dollars.
Positive word of mouth advertising will become increasingly important for retailers.

The trends are clear. Companies will spend more and embrace all new technologies available in order to grab a larger piece of an ever growing online sales pie. The early adopters will see the largest gains.