Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar helps you identify the most relevant research across the world of scholarly research.--About Google scholar.
Knovel is a collection of handbooks and other reference works in engineering. Knovel allows you to search across all of the e-books in their collection, searching down to the level of the individual text section. Knovel also enables you to specifically search for all tables containing values for a given physical compound.
Provides video and text material focusing on engineering failures and successes around the world, the areas includes: aerospace, civil and environmental, electrical, mechanical, etc. It offers 250 hours of videos and 50,000 pages of text material including documentaries, accident reports, experiments, visualizations, case studies, lectures and interviews from leading engineering institutions. Content is produced by the BBC, U.S. National Transportation Safety Board, American Society of Civil Engineers etc.