See also:

• Computers: Internet: Searching: Search Engines: Specialized  (18)
• Science: Directories  (36)

CiteSeer - - Search engine for computer science and related matters. For all results number of citations are given which allows to estimate the importance of a paper in a given context. Most of the papers are cached and available for direct download as postscript or PDF.

ISI Highly Cited - - A search tool to identify individuals, departments and laboratories that have made fundamental contributions to the advancement of science and technology in recent decades.

iSpecies - - A species search engine from Rod Page of Glasgow University. Search on either the common or Latin name of a species. Results are generated by querying other data sources.

Meta Search Engine for Scientific Literature - - A multi-search tool that permits queries from scientific journals.

Online Journals Search Engine - - A multi-search tool that permits queries of a number of scientific journals.

Scirus - - Search engine that fetches only scientific websites.

SciSeek - - Science search engine and directory. Also provides forums, tools and related news.