I'll be writing much more about this very soon, but for now just a quick note to say that one of the major events at AoIR 2013 was the launch of Twitter and Society, the new collection edited by Katrin Weller, Jean Burgess, Merja Mahrt, Cornelius Puschmann and me which will be published by Peter Lang in the coming days. The book contains more than 30 chapters by a stellar line-up of Internet scholars, and should be listed on Amazon and the Peter Lang site within the next week - I'll post an update then. For a preview of what's covered, and for further updates, check the @twitsocbook Twitter account - and for now, here's a group shot of some of our contributors and editors, with the very first copies of the book.

This AoIR 2013 also contains a paper by Theresa Sauter and me, on the tone of debate in the #auspol hashtag for the discussion of Australian politics. Here are the slides - audio to follow now online as well...

Exploring Emotions on #auspol: Polarity and Public Performance in the Twitter Debate on Australian Politics from Axel Bruns

The final paper in this AoIR 2013 crisis communication panel is by Jean Burgess, Avijit Paul and me. The slides are below, and audio will follow later is now online as well...

Cumulative and Comparative Social Media Analytics for Crisis Communication from Jean Burgess

The third speaker on our AoIR 2013 crisis communication panel is Megan Finn. She begins by noting that the US Geological Survey is now using Twitter data to detect earthquakes - but more generally, there are also limits to the use of Twitter and other social media data, as not all groups in society are equally represented in such data, and in social media as such.

A disaster is traditionally defined as an event, concentrated in time and space, in which society undergoes severe data and essential functions of society are interrupted. But the components of this definition are problematic - a crisis is more a reflection of the ability or otherwise of the socioeconomic system to cope with unusual conditions in a current situation, and this needs to be better recognised; for one, the recovery period also emerges as an important point of focus here.

The next speaker in our AoIR 2013 panel on crisis communication is Andres Monroy-Hernandes, who focusses on emergency responses in the current Mexican drug war. Traditionally, emergency information has been disseminated by government officials and the media, but this is not necessarily the case in Mexico, due to the scale of civil disorder in the country: journalists and government organisations in northern Mexico are essentially operating under a self-imposed news blackout due to the pressure they feel from the druglords.

Instead, social media are increasingly adopted for information: citizens in lawless areas are warning each other of "risky situations" (shootings, bombs, etc.), with hashtags like #mtyfollow emerging as the mechanisms to collate such warnings. A kind of "narco language" is also emerging - for example for kidnappings, dead bodies, etc. - and the occurrence of such language is correlated with the murder rate in specific areas, and with the magnitude of specific events.

The next panel at AoIR 2013 is on crisis communication, and we have a paper in this one, too... We start, however, with Leysia Palen from the fabulous Project EPIC in Boulder, who begins with a general overview. Disasters are disruptive, unpredicted events which mean that normal daily routines cannot continue; emergencies become disasters when they overtax available local resources.

One aspect of disasters is mass convergence: a slower-motion convergence of people either in local locations or in spaces immediately outside the disaster zone - including affected residents, support staff, and curious onlookers. These groups are often organised around available items of information about the disaster.