Retrospect by Chris Messina and Jyri Engeström on the emergence of:
– user-centric web 2003-2006 from the document-centric web
– realtime web, originally in proprietary form (Twitter, Friendfeed), now open and decentralised (pubSubHubhub)
Work in progress:
– Portable profiles
– Distributed push publishing
– Synchronized conversation threads
Kaliya Hamlin on the OpenID/Infocard implementation at federal US sites.
The authentication at these sites will have the character of a "portable cookie" – no info exchange/data linking between sites (directed identity), no transfer of personal data.
See these posting by Andy Oram for more detail: http://broadcast.oreilly.com/2009/07/shortening-cookies-using-openi.html and http://radar.oreilly.com/2009/08/privacy-and-open-government-co.html
Facebook's API and Facebook Query Language (FQL) give a view on Facebook data that misses the subtleties of the interface – so you get a "naked" and somewhat startling view on friends' (or just all people your app got access to) data:
"I didn't just get back future events my friends were attending. I got everything they had been invited to: past and present, attending or not. "
"I've been able to obtain status feeds, even for users who have very tight privacy settings, although I had to tweak my own application's privileges to do so."
"most interesting part of all of this have been dark users. Like dark matter, these users are not directly observable, usually because they've completely disabled API access."
"If your friend has granted the application the read_stream privilege, then it can read your status stream. Even if a friend of a friend has done this, and you comment on your friend's status entries, it's possible to infer your existence and retrieve those discussions "