I thought this was interesting.
While Enterprise customers have dealt with or at least known about Digital identities for a while, the concept is a fairly new topic to consumers. They understand that they use a user name and a password to access certain sites but they don’t know the relevance of that identity to the rest of the Internet.
Add to this all of a user’s corporate identities from Active Directory, ERP, HR, LDAP, Portals, web apps, etc… and you can see how "identity" on the Internet is a really important concept.
http://blogs.msdn.com/richardt/archive/2006/11/16/how-many-identities-do-you-have.aspx
Kurt Shintaku's Blog 