Welcome to Bigwalls.net, home of best big wall info since the dawn of the internet.
Popular links (opens in new page):
The Original BigWalls.net--with various big wall info from the 80's and 90's
BigWallGear.com--home of the best portaledge designs
The Mechanical Advantage (history of tools for ascent)
Big Walls--what are they all about? (John Middendorf slideshow)
Ascent of the Grand Voyage on Great Trango Tower --biggest big wall in the world
Big Wall Tech Manual (1988)--the first published "how-to" big wall book