eFunda's mission is to create an online destination for the engineering community, where working professionals can find concise and reliable information to meet the majority of their daily reference needs.
Google Scholar enables you to search regularly for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research.
HowStuffWorks is widely recognized as the leading source for clear, reliable explanations of how everything around us actually works. Great site for normal English explanations of things, but beware of annoying pop-ups.
ScienceDaily is one of the internet's leading online magazines and web portals devoted to science, technology, and medicine. It is a source for the latest research news.