Blogger in Draft, the testing
platform of the free weblog platform, now lets its users enabled
OpenID-based commenting under the comment tab
of their blog settings.
This means that users of OpenID-enabled services such as
WordPress or
LiveJournals can comment on your blog
using their accounts, instead of forcing users to sign in with a Blogger/Google
account.
What else can you do with OpenID?
Check out this list of sites that
are OpenID enabled.