TechCrunch’s Michael Arrington has an interesting article today about the “centralised me”, a follow-up to Loic Le Meur’s post about wanting to re-centralise his decentralised social “map”. Here is a picture I drew some time back showing the decentralised me:

I previously talked about how SIOC and FOAF can be used to represent this, and how this representation of people’s decentralised content is tied to the networks formed via social objects. (See also this paper.)

This is certainly something that fits with the ideas of DataPortability. I think people may have different requirements, including:

• I may want to centralise my stuff on my own service, like Loic outlined.
• I may want to see my stuff on a third-party service providing an aggregate view, like FriendFeed.
• I may want to move all my stuff from multiple services to one third-party service.
• I may just want to move the stuff I have on one service to another (e.g., move all my blog posts, comments, friends, etc. from WordPress.com to Acme Blog Service).