On Being a Scientist
Ensuring the Integrity, Accessibility and Stewardship of Research Data in the Digital Age
Ethical Issues in Biomedical Publication
Links to ethical codes provided by numerous professional societies and other entities can be found here and here.
Responsible Conduct of Research Toolkit (From the National Postdoctoral Association)
Responsible Conduct of Research online course materials from Columbia University
To suggest a resource to add to this list, please e-mail Elsa.