MAHQ became the home of the old Mecha Domain website after it shut down. It's by far the best source for mecha information. You can find a profile on just about any Mobile Suit in the entire Gundam universe there. This is a Must-See site for any Gundam fan.

Library of Londenion is a great source for some obscure Gundam information. The guy who runs the site, RGZ-91, is able to translate Japanese, and with that ability, he bring us some great information. I especially enjoy reading the info in the "Emblem" and "Character Profile" sections.

This is the website of Mark Simmons, the webmaster of the beloved, but now gone Gundam Project. This site is nothing like GP, but it does have some interesting articles on Gundam-related stuff. Definitely worth taking a look at.

This is the Gundam's Official website which is run by Bandai America.