http://msdn.microsoft.com/en-us/magazine/ff872350.aspx

WIF

http://stackoverflow.com/questions/44509/single-sign-on-across-multiple-domains?rq=1

There are a number of open source cross-domain SSO packages such as JOSSO, OpenSSO, CAS, Shibboleth and others. If you’re using Microsoft Technology throughout (IIS, AD), you can use microsoft federation (ADFS) instead.

http://stackoverflow.com/questions/1043111/transparent-user-session-over-several-sites-single-sign-on-single-sign-off?rq=1t

Single sign out  http://www.open-open.com/doc/view/bab4731ca3e14408a44b6b32d0d8b314

CAS Single sign out http://www.blogjava.net/xmatthew/archive/2008/07/09/213808.html

Single Sign On (SSO) for cross-domain ASP.NET applications

http://www.codeproject.com/Articles/106439/Single-Sign-On-SSO-for-cross-domain-ASP-NET-applic

京东SSO分析 http://www.uml.org.cn/zjjs/201308135.asp

http://www.cnblogs.com/alee/archive/2007/02/05/641211.html

http://www.kuqin.com/system-analysis/20110901/264158.html

http://www.blogjava.net/Jack2007/archive/2008/04/10/191795.html