Type "elephant" into the "One-Stop Research" search field to pull up maps, facts and photos from the National Geographic archive. Designed for educators, the site includes lesson plans in various subject areas and a teacher store where you can search for materials based on subject (mainly Sciences and Social Studies, as you'd expect) resource type (books, maps, software, etc.) or grade (K-12). Another must-click: nationalgeographic.com/news.
First, a caveat. This is not a directory of the 50 greatest websites ever. Rather, it's a tally of the best sites launched or piqued our interest in some way since last year's list. Think of it as our round-up of 50 nifty links we think you should check out. So get clicking!