COGPRINTS - Cognitive Sciences Eprint Archive
Preprint archive open to all researchers - 500 documents in computer sciences.
CoRR - Computing Research Repository
A preprint repository open to all researchers. Indexed in the Networked Computer Science Technical Reference Library - 900 papers.
INRIA reports
1800 reports from the French Institute of Computer Science, in english (plus PhD thesis in French).
On-line CS Techreports
List of 400 tech reports archives by institutions and countries (1996).
Technical Report Archives in Computer Science (By
List of 150 tech reports archives by institutions (1995).
UCSTRI - Unified Computer Science TR Index
Indexes 14,000 technical reports from institutions archives - accepts archive submissions.