Describes government technical reports from the U.S. and other countries. Good for locating reports that one should be able to obtain for free from NASA, DOD, DOE, EPA and other agencies. NTRL has the full text of more than 800,000 technical reports.
Free computer science citation database with some full text available. Lists the most frequently cited authors and documents in computer science, as well as impact ratings. Also provides algorithms, metadata, services, techniques, and software.
University of Maryland -
Indiana University Computer Science Department
Massachusetts Institute of Technology (MIT)
University of Washington Computer Science & Engineering Department