Say hello to your JSON clone.
This would be mine http://reminderof.me/json/ruggero
Do you see the advantages of having such a clone to synchronize the content where you get mentioned?
Example use case:
When you mouse over the link on my name on a random website you see all my up-to-date contact icons.
When you mouse over my name on a different website the same icons appear
When I change my contact all the random websites mentioning me stay up-to-date and reliable content. "Clone" is silly. We have a perfectly good word for this, its called a "profile". This has been done a lot before; formats in this space include vCard/hCard, XFN, and FOAF, that I can think of easily. The really hard part (as with most things dealing with the semantic web) is getting "random websites" to use a link to your authoritative public profile when they mention your name, not coming up with yet-another serialization format for basic profile data.