Databases
ARL Directory of Scolarly and Electronic Journals
Blackwell-Synergy
Search journals published by Blackwell Synergy, some articles are available for free while others are over-priced.
Comparative Cognition Society Member Publications
This database contains full text articles published by members of the CCS.
ERIC
"ERIC provides free access to more than 1.2 million bibliographic records of journal articles and other education-related materials and, if available, includes links to full text. ERIC is sponsored by the U.S. Department of Education, Institute of Education Sciences (IES)."--ERIC Website
FindArticles.com
This site has recent full-text articles from scientific journals and magazines.
Google Scholar
Use this specialized Google search engine to find relavant journal articles.
Highwire Press
"A division of the Stanford University Libraries, HighWire Press hosts the largest repository of high impact, peer-reviewed content, with 1033 journals and 4,247,647 full text articles from over 130 scholarly publishers. HighWire-hosted publishers have collectively made 1,683,761 articles free. With our partner publishers we produce 71 of the 200 most-frequently-cited journals."--HighWirePress Website.
Online Journal Search Engine (OJOSE)
You can search multiple databases from this page, but you can't search more than one at a time.
PsycArticles.com
Search every APA journal here, and if you need to, purchase the articles directly.
Psychonomic Society Publications
The Psychnomic Society publishes Behavior Research Methods, Cognitive Affective & Behavioral Neuroscience, Learning & Behavior (formerly Animal Learning and Behavior), Memory & Cognition, Perception & Psychophysics, and Psychonomic Bulletin & Review. All articles published between 1991 and 2000 are available FREE!
PubMed
This is a huge directory of scientific journal articles. They also host a lot of full-text articles
ScienceDirect
Search every journal published by Elsevier. A bit pricey if you need to purchase an article, but a good place to check before you head to the library.