Rick E. Bruner, Director of Research DoubleClick, on Business Blog Consulting wrote a report (PDF, 22 pages)
The Decade in Online Advertising 1994-2004
manly with data from DoubleClick and Nielsen/NetRatings.
Bear in mind who made this (fine) collection, but the report gives you a valuable and timesaving collection for your next presentation on the subject. Hopefully Rick will share the charts in a better quality (as taken from the PDF) too.
And, if you make or want to make money on online advertising, a reconfirmation that you are in the right business as online advertising can only go up!
via Rick E. Bruner (himself) on Business Blog Consulting