University of Washington
Pacific Northwest Regional Newspaper & Periodical Index
Covering newspapers, magazines, monographs, theses, dissertations and other material, this index goes back as far as the mid-nineteenth century. Very useful for locating primary source material on the Pacific Northwest region.
National Institutes of Health
Ncbi: Pub Med
This free index provides citations for biomedical articles from scholarly journals. For the actual article, library resources will have to be consulted.
Other
Bayou State Periodical Index
Focused on periodicals pertaining to Louisiana, this online index covers even obscure publications such as alumni newsletters, and occasional offerings of non-profit organizations.