1503 A.D Insider
Contains news, game features, lists of resources, buildings, production, research, and units, scenarios, and forum.
A. Pianto
Contains tips, information on natives including trade data, military units, research trees, building tables, and commodity lists.
Gameguru Mania
Review by: hx, 72%. "Anyone who likes management/strategy games and have not played 1602 or 1503 yet, will probably like this one." Includes screenshots.
Gamer's Hell
[6.8/10] Review by Dustin Gardner. "...[B]rings something largely new to the younger RTS fans looking for something really unique and different." Includes screen shots.
Gamespot
Reviewed by: Bruce Geryk, [7/10]. "The new game's slow pace and emphasis on trade and economy over military operations might not seem too exciting for fans of traditional real-time strategy, but those looking for something different may want to give it a try."
Gamespy.com
Review by: William Abner, [72/100]. "If you played 1602 A.D. and hated it, you'll most likely hate this version. On the other hand, if you loved the old game, and are thirsting for more of the same, then 1503 A.D. is a good choice."
GameZone
Review by: Anise Hollingshead, [7.3/10]. "I was pleased for the most part ... and will probably continue to keep playing for awhile, but while pleasant, it hasn't quite captured me as well as some other strategic games and probably won't keep me up for late-night sessions." Has screenshots.
Sunflowers: Anno 1503/1503 AD
Official site, with news, trailers, features, forum, chat, and FAQ.
Wargamerit Anno 1503/1503 A.D.
Includes data covering resources, social status, buildings, military, ships, and research, bug list, hints, campaign walkthroughs, downloads including scenarios, and forum.