Where the Engineers Are - "To guide education policy and maintain its innovation leadership, the United States must acquire an accurate understanding of the quantity and quality of engineering graduates in India and China."
Belief and knowledge - a primer on science communication
Journal of Visualized Experiments is an online research journal for publishing visualized (video-based) biological experiments
Neuroscience Gateway - "a comprehensive source for the latest research, news and events in neuroscience and genomics research"
Motion Mountain - "The project aims to produce a simple, vivid and up-to-date introduction to modern physics, with emphasis on the fundamental ideas of motion. 'Simple' means that concepts are stressed more than formalism; 'vivid' means that the reader is continuously challenged; 'up-to-date' means that modern research and ideas about unification are included."
National Geographic has a special issue on Africa out this month. There's also their Africa resource site.
Resonata - A Wave Machine [Java]
Howard Hughes Medical Institute's Biointeractive - a nifty biology instruction site.