Berkley Electronic Press (bepress)

– Publishes peer-reviewed electronic journals and develops software for scholarly publishing. Also hosts searchable institutional repositories.

Directory of Open Access Journals

– Categorized, searchable links to free, full text, quality controlled scientific and scholarly journals.

EBSCO Online

– An electronic journals service available to both academic and corporate subscribers. It aggregates access to electronic journals from various publishers.

Emerald Group Publishing Limited

– Publisher of journals in management and library and information services, engineering, applied science and technology.

Gateway Service Center of Chinese and Korean Academic Journal Publications

– Provides free delivery of full-text copies of Chinese-language and Korean-language academic journal articles not otherwise available to researchers in the United States.

Genamics JournalSeek

– Database of thousands of journals. Main focus on Scientific disciplines, but listings are not exclusive.

GetCited.org

– Database of journals and corporate publications, searchable by a number of criteria. Also features discussion forum for researchers.

International Standard Serial Number (ISSN)

– Information on the ISSN, which identifies periodicals worldwide, whether in printed form or other media (including online).

Open Journal Systems

– An open source journal management and publishing system that has been developed by the federally funded Public Knowledge Project. List of features, documentation, online demonstration, and download. [GLP]

Periodicals Index Online

– Provides over 9 million article records, covering journals and periodicals from 1770 to 1990 in the arts, social sciences and humanities. Published online by Chadwyck-Healey. Subscription required but a free trial is available.