TheServerSide.NET - Integrating 3rd Party Single Sign On in Sharepoint Portal Server

TheServerSide.NET - Integrating 3rd Party Single Sign On in Sharepoint Portal Server: "Microsoft SharePoint Portal Server 2003 enables enterprises to develop an intelligent portal that seamlessly connects users, teams, and knowledge so that people can take advantage of relevant information across business processes to help them work more efficiently. Microsoft Windows SharePoint Services and SharePoint Portal Server 2003 have become very popular in recent years and have helped many businesses create an infrastructure for sharing and collaborating internal information.
Intranet users are commonly required to use a separate password to authenticate themselves to each server they need to access in the course of their work. Multiple passwords are an ongoing headache for both users and system administrators. Users have difficulty keeping track of different passwords, tend to choose poor ones, and then write them down in obvious places. Administrators must keep track of a separate password database on each server and deal with potential security problems related to the fact that passwords are sent over the network routinely and frequently.
Single sign-on (SSO) is mechanism whereby a single action of user authentication and authorization can permit a user to access all computers and systems that he or she has access permissions for, without the need to enter multiple passwords. "