Online ad revenues in the US totaled $2.3 billion in the first quarter of 2004, the highest quarterly total since the companies began tracking the metric in 1996. Aside from the last quarter of 2003, online ad revenues had not surpassed $2 billion since 2000.

Online ad revenues increased 3.9% compared to Q4 of last year, and grew 38.9% since the first quarter of 2003 a year before. After a slump in the market in 2001 and 2002, revenues began to steadily grow again in 2003, and the trend has continued into this year.