Doubleclick.com has a report (PDF) on the last decade in internet advertising.
Even if you aren’t interested in online marketing, it’s an interesting read; it could probably be argued that no one is more interested in following trends and statistics than marketers (except maybe actuaries). So for an interesting look at some of the trends of activity and growth on the internet (more accurately, specifically on the World Wide Web) in the last ten years, it’s a great window into these areas.
