eMarketer: Net Users Spend 7.6 Hours per Week Online

eMarketer has a new study called Online Advertising Essentials which delves deep into the Internet audience addressing the increase in online ad spending, how demographics should be used by advertisers, why current metrics don't show the complete ROI picture, the effects of cross media consumption, where the ad dollars are going, and who advertises the most.

The report also cites a DoubleClick study that shows 82% of online marketers cite branding as the primary objective for their online advertising efforts.