According to the company, the increase in advertiser demand for rich media in 2004 was the chief motivating factor behind the upgrade. A study recently released by DoubleClick shows that rich media rose 54% from Q1 of 2003 to become more than 42% of all ads served in Q1 2004 (source: DoubleClick Q1 2004 Ad Serving Trends). The study further discloses that rich media click- through rates are nearly four times higher than those for non-rich media.