Forbes.com has launched a new campaign that extends its brand increase guarantee to print advertisers.

"Take the Forbes.com Challenge" compares the value and impact of online advertising with ads in traditional news media, such as The Wall Street Journal.

"Helping marketers reach their target audiences – affluent business decision-makers – with zero waste and definable ROI, continues to be a priority for Forbes.com," says James Spanfeller, president and CEO, Forbes.com. "We know from experience that we can do it very successfully, and we're proud to offer a new challenge to guarantee that Forbes.com, compared to offline media – in this case, The Wall Street Journal print – is the absolute best buy for a company's ad dollars."

Forbes.com says it will guarantee advertisers who take "the challenge" that their ad dollars on Forbes.com will outperform their Wall Street print ad dollars or the cost of the Forbes.com campaign will be refunded. Ad effectiveness will be measured by InsightExpress.

The campaign will run in print and online with Advertising Age, AdWeek, BtoB magazine, MediaPost's Media magazine and MediaDailyNews and medialifemagazine.com