Abstract Services

Astrophysical Data Systems (Astronomical Abstracts) - a gateway to online Astronomy and Physics literature
First Search - database variety including WorldCat & ArticlesFirst
Association for Computing Machinery (ACM) Digital Library
IEEE Xplore - search and view the full-text of all IEEE journal articles and conference proceedings
Ingenta - tables of content and abstracts
Google Scholar - Google's abstract/full-text search
Meteorological Abstracts - meteorological & geoastrophysical abstracts
Science Direct - Elsevier journal search
Web of Science - abstract and cited reference searching (see also: WOS Tutorial)
Scitopia - search electronic libraries of 21 science and technology societies spanning 350 years