This website provides an overview of eco-terrorism and its main groups, the Animal Liberation Front (ALF) and the Earth Liberation Front (ELF). Maintained by the Anti-Defamation League.

The CFR is a non-partisan think tank devoted to foreign relations. The terrorism section contains primary and secondary documents about terrorist attacks, terrorist organizations and how the economy and technology influence terrorism.

The CDI is part of the World Security Institute, a multi-national organization that provides expert analysis on national and international security and defense policy. Does not accept funding from the U.S. government or the defense industry.

The TRC is an independent institute dedicated to research on terrorism, including the latest news and reports. Although much of the content is only available with a subscription, much of the information is freely available.

This website tracks news from around the world related to terrorism. There's also a searchable database that where you can search by issue, nation, etc. Maintained by the St. Thomas University School of Law.

Maintained by the U.S. Department of State as required by law, this website features annual updates of reports on terrorism by country, as well as information on terrorist safe havens and terrorist organizations.