David Hallerman

David Hallerman
eMarketer's Hallerman Says Companies Putting More Money Into Online Advertising

David Hallerman, a senior analyst at market research firm eMarketer, recently released a report titled "US Advertising Spending" that found that U.S. Internet ad spending surpassed $5 billion in the second quarter of 2007 - the largest sum recorded in any quarter, according to research from the Interactive Advertising Bureau and PricewaterhouseCoopers.