Office for Human Research Protections (OHRP)--Research conducted on humans, however innocuous and simple the project may be, involves legal and ethical issues. This site shows how much time and effort goes into attempts to protect privacy, safety, and well-being. U.S. Department of Health and Human Services.
Data Access & Research Transparency (DA-RT)--Website for the Data Access and Research Transparency website, which provides information pertaining to the changes in the ethical guidelines for the APSA.
Experimentation--Overview of a classical randomized experiment provided by Yale.