The European Network and Information Security Agency (ENISA) recently published their white paper on “How to Shop Safely Online”. It contains some good recommendations for both the consumer and the provider on how to conduct business in a secure manner while online. I was one of the contributors to the paper which is available to download free from the ENISA website.
As an aside ENISA provides many excellent white papers on different areas of information security ranging from Cloud Security, to Security Awareness and to Computer Security Incident Response. You should make it one of your New Year resolutions to become more familiar with their work.