expatexchange.com Registration for email newsletters containing critical travel warnings designed for US expatriates.
Fielding's DangerFinder A somewhat 'gung ho' approach to dangerous places but contains detailed information about how to keep safe in some of the world's most dangerous places. Also has a traveller's bulletin board.
iJET Travel Intelligence Commercial organisation providing detailed travel advice and warnings for various destinations.
Kroll - The Risk Consulting Company Risk assessments for business travellers in the Middle East and Argentina. Register for email newsletter.
Lonely Planet Thorntree The Lonely Planet travel guides' message board. Contains detailed questions and answers from travellers about the current situation in most places.
Overseas Advisory Council (OSAC) Private/US Government partnership. Issues travel advisories and announcements. Database of news items related to overseas incidents, mostly specific to US interests.
Sign in Safe Offers the latest travel safety news, along with tools to monitor the safety of people as they travel.