At the end of February, Jupiter's AdRelevance skyscrapers accounted for 30 million impressions. More recent data shows that skyscraper ads account for 280 million, or approximately 2% of all online ad impressions. Yahoo! accounted for 39% of all skyscraper impressions; About.com, 18% and Switchboard.com, 3%. -- Catharine P. Taylor
Copyright June 2001, Crain Communications Inc.