Aid Climbing in a Three Person Team - Article by Ken Younge and Tuan Luong giving personal experiences, tips, and techniques. - http://www.terragalleria.com/mountain/info/yosemite/zodiac-tuan.html
Hints For Big-Wall Climbing in Yosemite - Tips for beginners, climbing in a three person team, soloing, hauling, and improving speed compiled by Q. Tuan Luong. - http://www.terragalleria.com/mountain/info/yosemite/big-walls-tips.html
SuperTopo: The Road to The Nose - Sells Chris McNamara's fourteen climb program for building skills, speed, endurance and comfort with big wall exposure. Includes topos. - http://www.supertopo.com/packs/road2nose.html
TradGirl Climbing FAQ: Aid Climbing - Frequently asked questions about aid climbing with answers compiled from rec.climbing. - http://www.tradgirl.com/climbing_faq/aid_climbing.htm
Bigwall.com - Topos, beta, trip reports and photos from walls in Yosemite, the Sierra Nevada, Zion, Fisher Towers and Black Canyon of the Gunnison. Plus the Aid Climbing Guide to Southern California. - http://www.bigwall.com/