This NASA-funded service provides access to four sets of abstracts: Astronomy and Astrophysics Abstract Service; Instrumentation Abstract Service; Physics and Geophysics Abstract Service; ADS/LANL Preprint Abstract Service. Records include many links to full text.

Inspec, created by the IEE (Institution of Electrical Engineers), is the leading bibliographic database providing abstracts and indexing to the world's scientific and technical papers in physics, electrical engineering, electronics, communications, control engineering, computing, information technology, manufacturing and production engineering. Search both Insepc & Inspec Archive. Coverage: 1898-current.

MathSciNet is a database that offers access to reviews, abstracts and bibliographic information for much of the mathematical sciences literature.

Multidisciplinary coverage of over 10,000 journals in the sciences, social sciences, and arts and humanities, as well as published proceedings for over 12,000 conferences per year, and over 50,000 scholarly books.Powerful tools allow you to search and see what articles in the database have cited a particular work, as well as perform other analytics.

NUsearch is the main search tool for Northwestern University Library, combining the library catalog with a wealth of other databases and online collections.