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Showing posts from August, 2007

Do you trust your friends with your URLs?

"Facebook's data feed a data leak?" over at Lawgarithms:

Please correct me if I’m wrong about this; I want to be wrong aboutthis. Or I want to learn that Facebook has already considered and dealtwith the issue and it’s just not readily apparent to me. But I’mthinking that Facebook’s feeds for StatusUpdates, Notes, and PostedItems must in many instances be at odds with privacy settings thatattempt to limit users’ Facebook activities to “friends only” (or areeven more restrictive).

Denise is both right and wrong.  The basic issue is that once you give out a feed URL (which is not guessable) to a friend, they can then give itout to their friends and their friends...ad infinitum.  These people can then get your ongoing updates, without you explicitly adding them.

Of course, this requires your friends to breach the trust you placed in them to guard your bits.  Notice that even without feeds, your friends can easily copy and paste your bits and send them on manually.  It's a …

RESTful partial updates: PATCH+Ranges

Over the past couple of months, there's been a lot of discussion aboutthe problem of partial updates in REST-over-HTTP[1][2][3][4][5].  The problemis harder than it appears at first glance.  The canonical scenario isthat you've justretrieved a complicated resource, like an address book entry, and youdecide you want to update just one small part, like a phone number. The canonical way to do this is to update yourrepresentation of the resource and then PUT the whole thing back,including all of the parts you didn't change.  If you want to avoid thelost update problem,you send back the ETag you got from the GETwith your PUT inside an If-Match: header, so that you know that you'renot overwriting somebody else's change.

This works, but it doesn't scale well to large resources or highupdate rates, where "large" and "high" are relative to your budget forbandwidth and tolerance for latency.  It also means that you can'tsimply and safely say "…

Some thoughts on "Some Thoughts on Open Social Networks"

Dare Obasanjo:
"Content Hosted on the Site Not Viewable By the General Public and not Indexed by Search Engines:  As a user of Facebook, I consider this a feature not a bug."
Dare goes on to make some great points about situations where he's needed to put some access controls in place for some content.  I could equally make some points about situations where exposing certain content as globally as possible has opened up new opportunities and been a very positive thing for me.  After which, I think we'd both agree that it's important to be able to put users in control.
Dare:"Inability to Export My Content from the Social Network: This is something that geeks complain about ... danah boyd has pointed out in her research that many young users of social networking sites consider their profiles to be ephemeral ... For working professionals, things are a little different since they mayhave created content that has value outside the service (e.g.work-related blog pos…

Relationship requires identity

NishantKaushik:
Let's face it, relationship silos are really justextensions of identity silos.  The problem of having to create andre-create my relationships as I go from site to site mirrors my problemof having to create and re-create my identity as I go from site tosite. The Facebook Platform might have one of the better IdentityProvider APIs , but all the applications built on it still have to staywithin Facebook itself.
Yup.  Which is the primary reason that I've been interested in identity-- it's a fundamental building block for social interactions of allkinds.  And think of what could happen if you could use theInternet as your social network as easily as you can use Facebooktoday.  As ScottGilbertson at Wired discovered, it's nothard to replicate most of the functionality; it's the people whoare "on" Facebook which makes it compelling.

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cat Google Spreadsheets | Venus > my.feed

Sam Ruby (prompted by Alf Eaton) combines Google Spreadsheets and Venus to let people manage Venus subscription lists (or whatever) using Spreadsheets.  The lingua franca is of course CSV-over-HTTP.  Like Unix pipes running over Internet, um, pipes.

Note that this requires the data to be publicly readable on the Spreadsheets side, which is fine for this use.  A lot more uses would be enabled with a lingua franca for deputizing services to talk securely to each other.

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