A bunch of links about developing with Microsoft Passport [via the HailStorm list]:

		<ul>
			<li>
      <a href="http://www.passport.com/SDKDocuments/SDK13/">Passport SDK</a>
    </li>
			<li>
      <a href="http://www.passport.com/DevInfo/">Passport developer site</a>
    </li>
			<li>
      <a href="http://www.rtr.com/passport/">Multi-platform Passport management software</a>
    </li>
			<li>
      <a href="http://www.microsoft.com/windows2000/library/howitworks/security/kerberos.asp">Description of Microsoft's enhancements to Kerberos</a>
    </li>
		</ul>