Indexes on-line technical reports from 150 institutions archives - open to institutions, or submit individual articles with the CoRR open repository. http://www.ncstrl.org
Searchable collection of bibliographies, including 1 million citations and 100,000 links to on-line documents - submit new bibliographies. Browse by subject. http://liinwww.ira.uka.de/bibliography/
Springer books and journals in computing for scientists and students in computer science, as well as for computer professionals and experts. http://www.springer.de/comp/
Free online version of a CD-ROM set for computer science students. Includes libraries, compilers, tutorials, extensive reference materials, for over 24 languages. http://burks.bton.ac.uk/
The ACM Guide and Digital Library with a set of internal and external reference and citation links giving access to current research. http://portal.acm.org/