CiteSeerx attempts to provide resources such as algorithms, data, metadata, services, techniques, and software that can be used to promote other digital libraries. CiteSeerx has developed new methods and algorithms to index PostScript and PDF research articles on the Web.
ACM Digital Library provides bibliographic information, abstracts, reviews and the full-text for articles published in ACM periodicals and proceedings since its founding in 1947. Also provides selected works published by affiliated organizations.
Full-text access to IET/IEE (Institution of Engineering and Technology) Journals and IEEE (Institute of Electrical and Electronics Engineers) transactions, journals, magazines, and conference proceedings published since 1988 and all current IEEE standards.
Scopus is an abstract and citation database of research literature and quality web sources, including journals, conference proceedings, trade publications, abstracts, and patent records. It is a multidisciplinary resource covering materials from the humanities, sciences and social sciences. Also indexes EMBASE articles. Scopus allows you to locate the most highly cited items and the articles that cite them.
Date Coverage: 1970-present; selected access back to 1823