Internet advertising revenues set a new record in the first quarter of 2012, totaling some $8.4 billion during the three month period, the Interactive Advertising Bureau (IAB) announced today.

This is one of the key findings of the IAB Internet Advertising Report, which is conducted twice a year by PwC U.S. According to the report, this represents a 15% increase compared to the same period last year.

As PwC US’ partner David Silverman points out, this is an important milestone:

“A 15 percent increase over the comparable period in 2011 is a solid affirmation the internet is delivering on its promise to attract consumers and the advertising dollars that follow.”

As a matter of fact, it seems that advertisers have finally started to follow consumers online, IAB’s president and CEO, Randall Rothenberg, explains:

“Marketers and agencies are clearly–and wisely–investing dollars to reach digitally connected consumers. More online consumers than ever are taking to the internet to inform and navigate their daily lives—by desktop, tablet or smartphone. Marketers and agencies are clearly–and wisely–investing dollars to reach digitally connected consumers.”

One thing is for sure, ad dollars are likely to keep on moving online over the next few months.

Image credit: Carl MiKoy