Archive for the 'Mediamatic' Category

Wednesday, March 5th, 2008

Barcamp Amsterdam III

Last weekend we had a small barcamp in Amsterdam on the subject of Federating Social Networks, XMPP and other random musings:

Brekkie

More laptops

I got the chance to play around with Twisted/XMPP for a bit with wokkel and it is really cool and something which could be really useful. Programming Twisted is somewhat too counterintuitive to pick up in a couple of hours.

I’m going to set aside some time to read the docs (again) and then continue on the small project of bridging an XMPP endpoint to a comet web frontend. More on XMPP later.

Monday, December 10th, 2007

Federating Social Networks review

Yesterday like I talked about, we had the Federating Social Networks meetup (Upcoming) at Mediamatic. This resulted in early mornings for those coming from outside of Amsterdam. Tijs, Mark, Pascal and myself took the early train and Blaine Cook and David Recordon had flown in from San Francisco for this meetup. Fortunately there was an espresso machine to keep us alert.

The aim of the day was to talk (see the Jaiku backchannel) about how we could use the technologies at our disposal and the data available to create better experiences for users. It looks like most of the specs are there and the conversation has been going on for most of the year. We should begin building stuff.

Mediamatic at least is dedicated to build something on top of anyMeta which needs to be ready by Q1 2008. The workshop was an effort to gather thoughts on the best way to move forward.

This week also saw the announcement of the DiSo project by Chris Messina. A way of building open social networks using Wordpress as the platform.

Problem statement

We spent quite some time on the problem statement and use cases. The discussion went all over the place both in subject matter, scope and level of detail. At this point I don’t think the philosophical considerations are very useful anymore. This is a broad subject and, yes, everybody has an opinion about it. We need to be a lot more concrete about what we want to build and steps we can take right now to get there. I thought that was clear from the event description but apparently not everybody read that.

Latop Crowd

The vision that is on the table is quite grand. By distributing and taking ownership of your own data, be it profile information, your relationships, your writing, your pictures or your videos, you get full control. Sites that want to participate in this effort will need to abide by your rules and read and write accepted standards. This means a dramatic redefinition of the way the internet works, so dramatic that it will not happen anytime soon. Also, I don’t think that we can standardize all that in an afternoon.

The problem that we need to solve and which is currently causing painful experiences is: Almost every site and application can be enhanced by adding information about the people you know. How do you do that without replicating effort both for developers and users time and time again?

Finally the list of use cases that we came up with:

  • Profile Aggregator (OpenID)
  • Access Privacy (profile, contacts, stuff I own, claim stuff/ publications)
  • Migration of data/ ownership
  • Content discovery/ finding stuff
  • Set privacy (noindex, etc)
  • Consolidation of data/ profiles
  • Personal Messaging
  • OpenId - reflection of profiles/ relations
  • Referencing accross sites
  • Control of representation of copy
  • Pingback when your object has been used/ altered

XMPP does it all

A lot of work especially by Ralph is focused on creating a Jabber/XMPP pubsub specification which can be used to post content and updates to and making it easy for interesting parties to be notified of those publications. This is very nice and Ralph’s presentation extolls most of the virtues of XMPP.

Ralph

Still it will take some time before this becomes relevant for the rest of the web. XMPP is the best thing since sliced bread and I imagine that the guys building it can make it do pretty much everything. There are two problems that hamper its adoption.
First the language and the concepts are sufficiently different that people need a lot of introducing before they are up and running with the concepts.
Secondly once you understand it, there is not much it will do for your blog running on a shared PHP host. Also if you do run XMPP on your own server, you can interface with existing services and you can do anything but there are not any well defined interactions yet.

Mediamatic is aware of this and for their own (PHP based) anyMeta sites and for the rest of the world that wants to participate they are going to provide a bridging server where websites can POST updates using HTTP and the service will publish notifications to interested parties both using XMPP and HTTP depending on the capabilities of the receivers.

HTTP may not be ideal and people fluent in XMPP describe most of the stuff it has been forced to do as hackish. Still, HTTP has a lot going for it. With Atom and REST, HTTP already drives a lot of application functionality over the internet. And with Comet style interaction starting to catch on non blocking HTTP servers will become more and more normal. This will make real time interaction and stuff that is currently not scalable easier.

Moving data

Luis Villa’s post eloquently makes the case for being able to move our data whereever we want. This is quite a big problem and not one that is going to be solved easily if at all.
Sites such as Flickr will allow you to get your data but there needs to be more incentive to open up and more standardization in container formats.

Presentation

The use case that was discussed of being able to own your pictures, the permalinks pointing to them as well as the comments on those pictures and being able to move that wholesale to a different site strikes me as somewhat too utopian. A site such as Flickr offers you their hosted application and hosts your pictures for you. As it happens Flickr has an API which allows you to get your data back but you will never be able to make a 1-to-1 mapping to another service.

Owning your namespace on a server not your own is a known problem: e-mail has the same problem and it still hasn’t really been solved. A few hosts such as GMail are gracious enough to let you POP your emails off their server, but you still have a middle man that you can’t cut out. Owning your own domain and forwarding it to another service (like Google Applications) seems like the way to go.

I don’t see this issue as going to be solved any time soon. The stakes are too high, the subject is too complex and in most cases a local copy will have to suffice. I have gotten used to losing some data at every significant computer migration. You can’t have your cake and eat it. If you really want to be in control, install phpAlbum on your domain on a generic host and move that around all you want.

Concrete steps towards the future

Marc promised a documentation server with the findings and draft specifications soon. Somewhere early next year Mediamatic will publish their public HTTP to XMPP bridge. Blaine, David and Ralph were supposed to draft something of a spec, but I don’t know when it’ll be made available.

Tijs has been creating quite the list of interesting sites in this space. Like the Attribute Exchange schema supported by OpenID 2.0 which looks very interesting. And a start page for all the standards for this initiative: Data Portability.org.

Another thing would be to start implementing the wordpress plugins listed at the DiSo wiki. I have an hAvatar plugin lying around which needs some testing before release.

A Wordpress plugin that will speak to the XMPP bridge service would need to do the following:

  • Add XMPP autodiscovery links to the <head> of the blog.
  • Ping the bridge service using HTTP every time a post is made or updated.
  • Maybe: listen to notifications from the server for stuff such as blogrolling or trackback.
  • Maybe: Publish your friend list as XFN to the bridge so interested parties can subscribe to that.

This won’t be too difficult to implement but it has to wait for the pubsub bridge to become public. It’s looks like the best way to converge to each other is to create stuff.

Wednesday, July 11th, 2007

OpenCI preparing to open up social network

Monday a week ago I visited Mediamatic on invitation from Willem Velthoven to talk about how they could fit in Portable Social Networks in their anyMeta system. This meeting was inspired by our meeting in Copenhagen and the talks we had about opening up social networks.

Picture by Matt Biddulph

anyMeta and OpenCI

Mediamatic.lab implements and maintains a series of social networking sites for the creative industries (CI) in Amsterdam. These are sites built on the anyMeta system that resemble structured wikis with a strong social dimension. They are positive towards open source, but the anyMeta system is not open source for reasons of manageability of the projects.

Seeing as that these sites have a lot of overlap in both in functionality and in the people that have an account on them, they wanted to abstract and syndicate the social stuff as much as possible. Currently people can have accounts on each of the different sites, all with the same information on them.

Seeing as Mediamatic builds anyMeta themselves and they have total control, it is very feasible for them to devise and mandate the exchange of information between their own sites. To enable the exchange between their own sites, they will use their own protocol and data format to provide for a high fidelity exchange of information. Leaving implementation details for what they are, it should become possible to use one account on any of the sites in the network.

To verify your identity on the various sites of the network they are going to enable OpenID consumer and provider functionality in the next version. This way they will have a way of distributed authentication both within their network of sites and throughout the rest of the internet.

anyMeta and the rest of the web

Microformats logo

Having solved the problem of information exchange between anyMeta sites, they would also like to play along with the rest of the internet as far as that is possible. Being able to share public information with the rest of the internet in a logical way is also on the agenda but not so straight forward.

Making public profile information available using hCard and related microformats looks easy enough. Problems arise however because the templates are made by different people and that is the location of the microformatted markup. This means the template authors have to be educated on the subject of microformats.

Whenever I advocate the use of microformats, I always have to fight against the blank looks and criticism about the aplicability of the technology. It’s a solid Catch 22 that has to be taken on with real life use cases and benefits to extoll the virtues of a dirty semantic web. For hCard there are various uses cropping up over the internet, but for the others it is a lot more limited. Having microformatted data on sites and being able to parse that using browser plugins is a first step and essential groundwork for the real use cases and richer interaction that we all want to have.

Another plan they have at Mediamatic is to first enable the sharing of information between their sites and make plugins for some of the bigger CMS’es out there (Drupal, Joomla) so they can also exchange information with those systems.

In these use cases and in the case with the internet the issue of fidelity comes up again and again. How much information can you exchange reliably and what do you do when stuff is missing? This is an important and valid question with no ready answer; though mine would be ‘get what you can, and ignore the holes where possible’.

Other stuff

Facebook logo

I am currently not implementing anything relating to OpenID and Social Networks but I think I would like to. One idea was to make a Facebook front-end site which uses the information in Facebook to offer you a microformatted profile. There already is an hCard application but extending this with XFN, hReview and hResume would be a real winner.

Yesterday on the O’Reilly event I heard about Yme Bosma who’s job it now is to drag Hyves kicking and screaming into the world of Open Social Networks. I wish him a lot of luck as that would be a good thing to have. I have started my own work on scraping the Hyves site but that hasn’t been as simple as I would have liked.