Institute of Competition Law
- Provides information on competition and antitrust laws in the European Union. Includes case law, news, conferences, and articles.
- http://www.concurrences.com/

Harry B. Ray - Husch & Eppenberger, LLC
- Introduction to the legal environment for buying groups.
- http://www.buyinggroups.com

Antitrust Monitor
- Discussion of antitrust developments by attorney Denise L. Diaz.
- http://www.diaz-law.com/

Lucash, Gesmer & Updegrove, LLP - Consortium Info
- Information regarding the setting of technology standards and consortia for implementing them, focusing on open-source software.
- http://www.consortiuminfo.org/

The Antitrust Source
- Online version of a bimonthly journal affiliated with the American Bar Association, addressing developments in antitrust law.
- http://www.abanet.org/antitrust/source/

American Antitrust Institute
- Non-profit think tank for promoting competition, with news headlines, archived reports and advocacy, and an annotated guide to online antitrust resources and research.
- http://www.antitrustinstitute.org/

United States Department of Justice
- Report suspected antitrust violations, such as bid rigging or price fixing, to the Department of Justice by e-mail, phone, or mail.
- http://www.usdoj.gov/atr/contact/newcase.htm