Links Collections
Many soaring web pages have a "links" section.  Below I've included only the sites with extensive collections of soaring links.

Airman.com - SuperGuide to aviation web sites
dmoz Open Directory Project
Dropbears.com
Flugplatz-Leibertingen - German soaring Links page with hundreds of links
glider.com
gliding.start4all.com
Gulf Coast Soaring, Inc.
Günther Eichhorn's Soaring Server
Landings.com
Soaring Society of America - info. about every club and commercial operation in the U.S.
SoarWest
Thirty Thousand Feet Aviation Directory - Soaring
Whisperwings - Gliding Club in South Africa - Bruce Greeff
Worldwide Soaring - Details on places to fly gliders around the world - Christian Suttner