GameFAQs - Cheats, reviews, and a message board. - http://www.gamefaqs.com/computer/doswin/data/914468.html
FilePlanet - Movies, trailers, demos, and patches. - http://www.fileplanet.com/78986/0/section/Perimeter
3D Gamers - Includes information, news, screenshots, and downloads. - http://www.3dgamers.com/games/perimeter/
1UP - Review, by Jennie Sue: "Perimeter's refreshing originality in gameplay and exquisite terrain maps have pushed the boundaries of the RTS genre." [Score: 7 out of 10] - http://www.1up.com/do/reviewPage?cId=3133351&did=1
IGN: Perimeter - Screenshots, videos, review, previews, news, features, and a message board. - http://pc.ign.com/objects/017/017476.html