Compendex - Search for engineering & computer science articles
Compendex indexes technical and engineering journals, conference proceedings and papers, technical reports, and monographs. Subjects include all areas of engineering; transportation; management, mathematics, and physics; electronics and communications; computers and data processing, and instruments and measurements.
GEOREF is the database of the American Geological Institute. It provides references to over 4,500 serial and other publications covering all aspects of geology and geophysics.
Scopus is an abstract and citation database of research literature and quality web sources, including open access journals, conference proceedings, trade publications, abstracts, and patent records.