With Facebook we have added THE social network to our list of identity providers:

Enjoy here.
One of our database servers had a physical defect which caused temporary downtime yesterday and today. We apologize for inconveniences.
Co-founder Johannes Schmidt published some thoughts on a Topic Mappish LAMP stack.
The recovery was successful, data is present again. Thanks for your appreciation.
Die Datenwiederherstellung war erfolgreich, ihr solltet jetzt wieder alles sehen. Danke für euer Verständnis.
After yesterday’s release some trouble concerning the storage layer for the chats and public messages occurred. This is why some Livestreams are more or less empty. We are currently working on a recovery which will take some time due to the huge data amount. We apologize for the trouble.
Leider müssen wir euch mitteilen, dass es nach dem gestrigen Release einige Probleme mit der Datenbank für Chats und öffentliche Nachrichten gibt. Ihr habt bestimmt schon gesehen, dass einige Livestreams praktisch leer sind. Wir arbeiten da momentan rund um die Uhr, um diese möglichst schnell wieder herzustellen; aufgrund der großen Datenmenge kann es aber noch dauern. Wir entschuldigen uns vielmals für die Umstände.
Eure 6g Crew
Jan Milz – co-founder of sixgroups.com and one of the authors – has made the preprint of the scientific paper about Instant Online Communities available. This paper is going to be published in the HCII proceedings in Springer’s Lecture Notes in Computer Science. Notice: The paper is a preprint, © Springer 2009. All rights reserved.
sixgroups.com Livecommunity has supported several conferences such as (suspended) OMD, Web 2.0 Expo, or VielMehr. In the follow-up of the VielMehr conference one of the organizers, Dr. Martin C. Kindsmüller, brought up the idea to write a scientific paper for the HCI International 2009. In this paper the application of the Livecommunity as an instant online community (IOC) in the context of a conference should be analyzed. Now, a paper titled Instant Online Communities as a means to foster conferences written by Martin C. Kindmüller, Jan Milz, and Johannes Schmidt is submitted to HCII and is going to be published in the HCII proceedings in Springer’s Lecture Notes in Computer Science. Martin C. will present it at HCII which takes place this summer in San Diego, CA, USA.
We start with the introduction of our notion of an instant online community. As mentioned, we further analyze the successful application of the Livecommunity at VielMehr in detail, uncover several shortcomings and sketch appropriate solutions to solve the described issues and to improve the Livecommunity (lessons learned). Finally, we introduce the idea of the Shared Common Subject spreading beyond system boundaries. This spreading which implies the blurring of system boundaries is enabled by IOCs providing backchannel functionality such as the Twitter backchannel of the Livecommunity. We regard this idea which causes a paradigm shift as the (scientific) foundation of our future activities.
Update 10/2009: Jan just published his Diplomarbeit – Instant-Online-Communities