One of the show and tells at the AIGA Summit this past weekend was by Julia Whitney from WGBH in Boston. This project is a companion to the 6 hour miniseries broadcast that ran this year. The interactive, web piece is a fusion of web and flash and video (currently the entire 6 hours of video is online). It is beautifully designed - both in form and in content. The scale of the project is impressive and the piece that stood out most to me is the Time Map that tracks the economic landscape across time and geography.
The window and it's settings (say you choose 1950) talk to the other windows as you select to view a report about the country. The time is contextual to your settings in the Time Map and all the information is based on that. They pulled this together for 41 countries across 90 span of time.

This is a rich and interesting site, not only for its content which is interesting, but for the techniques used to create paths and collections of information for people who may want to come at this information in different ways.