Did you know that Jefferson purchased the Louisiana Territory for less than three cents an acre or that William Henry Harrison "was one of the first U.S. politicians to use false advertizing," campaigning as a simple man who lived in a log cabin while he had been to medical school and grown up on a Virginia plantation? Mr. President, a new Website from the Smithsonian Center for Education and Museum Studies, is studded with these sorts of facts. The site uses a gallery format to give brief introductions to each of the former US presidents. Five galleries are arranged chronologically, each containing thumbnails of famous portraits of eight or nine presidents. Clicking on a thumbnail brings up a page with an expanded version of the portrait, a brief quote from and blurb on the president, and a "fast facts" card citing brief stats. While not an in-depth site, Mr. President is carefully composed, and everyone should find something of interest when browsing here.