LIVE FROM JUPITER ADVERTISING FORUM: More Fortune 500 Advertise Online, But Don’t Buy More Ads

The number of Fortune 100 advertising online has increased 21% since last year.

While Fortune 100 advertisers have increased in number, though, they have not been purchasing impressions at the same rate as the rest of the market. According to data from AdRelevance 3.0, Jupiter’s ad-tracking service, Fortune 100 companies increased their number of impressions by only 14% during the first half of 2001, compared with a 54% increase by the market as a whole.

The data was released today at the Jupiter Online Advertising Forum 01 in New York.

Financial services and technology companies led Fortune 100 advertisers during the first half of the year. Citigroup Inc. and J.P. Morgan Chase & Co. purchased the most impressions. Dell Computer Corp. and Microsoft were among the technology companies in the top 10.

The three-day conference ended today.