I’m on one of my rare visits to ICA, and at a journalism session that starts with my colleague Folker Hanusch. He points out the considerable offline homophily between journalists - they hang out and interact with each other, and this may also translate to an online context. Some of this also intersects with news organisations, news beats, gender, and other identity traits, however – and on specific platforms, of course, homophily may also result in different patterns for different forms of interaction (e.g.

For the past few years I have published regular monthly updates of the Australian Twitter News Index (ATNIX) at The Conversation and at Mapping Online Publics. As that partnership has now come to an end and the writing of regular updates had become somewhat onerous, we’ve developed a new approach to sharing the trends in how content from Australian news sites is being shared on Twitter.

From now on, ATNIX is published through a live, interactive dashboard which shows day-to-day trends and lists the most shared URLs for any given timeframe (click ‘full screen’ to enlarge):

I’ll continue to publish ATNIX updates on major trends and developments from time to time, but this dashboard provides a much faster way to make these live trends available. (As a next step in the process, I also hope to automate the @_ATNIX_ Twitter account so that it highlights major news articles as they are trending.)

Together with some of my colleagues from the QUT Digital Media Research Centre, I’ve just released a new, detailed analysis of the structure of the Australian Twittersphere. Covering some 3.72 million Australian Twitter accounts, the 167 million follower/followee connections between them, and the 118 million tweets posted by these accounts during the first quarter of 2017, the new article with Brenda Moon, Felix Münch, and Troy Sadkowsky, published in December 2017 in the open-access journal Social Media + Society, maps the structure of the best-connected core of the Australian Twittersphere network:

The Australian Twittersphere in 2016: Mapping the Follower/Followee Network

Twitter is now a key platform for public communication between a diverse range of participants, but the overall shape of the communication network it provides remains largely unknown. This article provides a detailed overview of the network structure of the Australian Twittersphere and identifies the thematic drivers of the key clusters within the network. We identify some 3.72 million Australian Twitter accounts and map the follower/followee connections between the 255,000 most connected accounts; we utilize community detection algorithms to identify the major clusters within this network and examine their account populations to identify their constitutive themes; we examine account creation dates and reconstruct a timeline for the Twitter adoption process among different communities; and we examine lifetime and recent tweeting patterns to determine the historically and currently most active clusters in the network. In combination, this offers the first rigorous and comprehensive study of the network structure of an entire national Twittersphere.

I published a preview of some of the study’s key findings in The Conversation in May 2017. Meanwhile, my paper at the Future of Journalism conference in Cardiff in September 2017 built on this new Twittersphere map to test for the existence of echo chambers and filter bubbles in Australian Twitter – and found little evidence to support the thesis:

I'm the next presenter in this Future of Journalism 2017 session, and my presentation is below. A full paper is also available here.

Echo Chamber? What Echo Chamber? Reviewing the Evidence from Axel Bruns