According to the Interactive Advertising Bureau, Internet advertising revenue in the U.S. totaled $1.5 billion for the fourth quarter of 2002, increasing over 2% from the third quarter, reflecting the
first consecutive quarterly increase since the second quarter of 2000. While the $1.5 billion fourth-quarter figure decreased 9.8% from the same period a year earlier, it marks the first single-digit
year-over-year percentage decrease since the first quarter of 2001. Internet advertising for full-year 2002 totaled $5.95 billion, a 17% decrease versus 2001. These top-line results are based on
compiling data from the top 15 online ad sellers, which historically account for over 80% of total industry revenues. The results of this revenue compilation are then extrapolated to calculate the
total industry revenue figure.
