United States

Business.gov - E-Commerce
Provides legal and regulatory information to help small business owners open an online store and getting started in e-commerce.
http://www.business.gov/guides/e-commerce/

The Information Economy
Part of the School of Information Management and Systems at the University of California Berkeley. Includes references to policy and law.
http://www.sims.berkeley.edu/resources/infoecon/

Michael Froomkin
Links to legal articles on e-commerce, encryption, privacy and related Internet law issues, from a Professor of Law at the University of Miami School of Law.
http://www.law.tm/