E-Collections

ACM Digital Library - ACM computing journals and proceedings. 
ACS Electronic Journals
BioMed Central - Scientific, medical and pharmaceutical research.
BioOne - Bioscience research journals
CiteSeer Scientific literature digital library
Directory of Open Access Journals
EBSCO Online - Searchable full text database of journals from many publishers.
Electronic Collections Online - OCLC
Free Medical Journals
HighWire Press
IEEE Xplore - Access to all IEEE and IEE journals and conferences.
IOP Electronic Journals
Medical Journals - Dialog
NASA Astrophysics Data System
PsycArticles - General, applied, clinical, and theoretical research in psychology.
Science Direct - Journals published by Elsevier to which NASA libraries subscribe.
Wiley Interscience - Access to more than 200 Wiley journals full text.