BioMed Central publishes a wide variety of open-access journals in biology, medicine, and public health.

From the website: "BioMed Central is an independent publishing house committed to providing immediate open access to peer-reviewed biomedical research." "BioMed Central's portfolio of 175 journals includes general titles such as Journal of Biology alongside specialist journals (e.g. BMC Bioinformatics, Malaria Journal) that focus on particular disciplines."

PLoS publishes a number of open-access biological and medical journals, which are rapidly becoming premier journals in their respective areas.

From the website: "PLoS is a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource." "Everything we publish is freely available online for you to read, download, copy, distribute, and use (with attribution) any way you wish."

There are currently thousands of open access scholarly journals around the world. The "Directory of Open Access Journals" provides a valuable database of all current open access journals.

From the website: "The aim of the Directory of Open Access Journals is to increase the visibility and ease of use of open access scientific and scholarly journals thereby promoting their increased usage and impact. The Directory aims to be comprehensive and cover all open access scientific and scholarly journals that use a quality control system to guarantee the content. In short [the Directory is] a one stop shop for users to Open Access Journals."

EHP is the premier journal for scientific research on environmental health, including new findings in human exposure. It is one of only a few open access journals in this field, providing free public access to all articles in both HTML and Adobe PDF format.