Compendex from Engineering Village is the most comprehensive engineering database, covering all disciplines. Use the FindIt button to locate the full text of the articles.
Scopus is the most comprehensive multi-disciplinary database of peer-reviewed literature. Also good for citation analysis.
ASTM Compass contains ASTM Standards and more.
EngineeringPro from Books24x7 contains thousands of electronic books from top publishers. Defaults to searching both EngineeringPro and ITPro, but you can use the drop down menu to limit to either collection.
National Service Center for Environmental Publications is the premier source for EPA publications. Most pubilcations are online, but those that are available only in print may be ordered free of charge.
GeoRef is the most comprehensive database of geoscience literature.
USGS Publications Warehouse indexes all USGS publications, many of which are downloadable.
USGS Library is the largest earth science library in the world.
WATERnetBASE contains over 130 books published by CRC Press, including Advanced Onsite Wasterwater Systems Technologies, Munincipal Stormwater Management, and Water and Wastewater Finance and Pricing.
Fisheries and Aquatic Resources Data Access Wizard will help you find downloadable GIS datasets.
TRIS Online contains over half a million records of published transportation research including technical reports, books, conference proceedings and journal articles.
Transportation Research Record We have electronic access to issues from 2010. Issues up to 2009 are on the 4th floor. TE .7 H5
Chemical patent information can be found in both SciFinder Scholar and Reaxys. Compendex and Scopus also have patents, but there are several sources whose sole purpose is to provide patent information.
Google Patents contains patents from the 3 major patent sources (USPTO, EPO, WIPO) in a more user-friendly interface. Foreign language patents have buttons for the original language and English (using Google Translate). One button translates the entire patent.
For US Patents: US Patent and Trademark Office
For European Patents: European Patent Office Foreign language patents have buttons that translate using Google Translate. Translations must be done for each section.
Journal Citation Reports is the source for journal impact factors.