As written up quite well by Ed Kohler over at technology evangelist

I think the biggest difference between online and offline advertising is encapsulated in the last difference listed in the table: Ongoing Revenue. While print advertising involves selling squares on paper, online advertising collects revenue generated by ad impressions, clicks, or sales generated by web pages over time.

Although I shy away from straight re-publishing of information, Ed did an excellent job of summarizing the differences and thought it was worth sharing here.

[tags] print, online, marketing.fm [/tags]