ConventionZoo.com - the world's first all-in-one convention booking portal. Book everything you need as a planner or an attendee.
WebFlyer.com - the Frequent Flyer Authority. A wonderful source for frequent flyer information. Be sure to sign up for their great newsletter.
Joe Sent Me - one of the top business travel websites on the planet. Great commentary and excellent information.
Budget Travel Online - Arthur Frommer's Budget Travel online has a wonderful section on business travel. Check it out to find out some of the current issues affecting the business traveler.
BusinessTraveller.com - business travel information, city guides and frequent flyer information.
Business Traveler Online - a great site with a wealth of information tailored to the business traveler.
MeetingNews.com - excellent up-to-the-minute meeting/convention news