OpenID is maturing quickly and there are already a couple of little applications which can accept OpenID logins. LiveJournal is already providing an identity server so that LiveJournal users can log in to other OpenID sites. The next step is to make LiveJournal be what we've been calling a consumer of OpenID, meaning that external users can log in here.
lj_dev: OpenID on LiveJournal
OpenID: an actually distributed identity system
OpenID: an actually distributed identity system: "This is a distributed identity system, but one that's actually distributed and doesn't entirely crumble if one company turns evil or goes out of business."