So Blogger realized the error of their ways and fixed the problem where you needed a Blogger ID to link within a comment.   On VDog’s site there’s a great email from Blogger admitting to the fact they eliminated the URL field prematurely.

One thing of note - if you self-host your own site like I do, you need to obtain a OpenID.  Great instructions here on getting a OpenID for a self-hosted WordPress site or any other self-hosted site.

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