Intute: Science, Engineering and Technology is a free online service providing you with access to the very best Web resources for education and research, evaluated and selected by a network of subject specialists. It covers the physical sciences, engineering, computing, geography, mathematics and environmental science. (Intute closed in July 2011.)
The Earth Exploration Toolbook (EET) is a collection of online Earth system science activities. Each activity, or chapter, introduces one or more scientific data sets and analysis tools that enables users to explore some aspect of the Earth system. Awarded Science Magazine's Science Prize for Online Resources in Education (SPORE), September 30, 2011