Title:  CMS Centres Worldwide - a New Collaborative Infrastructure

Corresponding author: Lucas Taylor
Fermilab, P.O. Box 500, Batavia, IL 60510-5011, USA


Abstract
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The CMS Experiment at the LHC has established a network of fifty 
inter-connected "CMS Centres" at CERN and in institutes in Asia, 
Europe, Russia, South America, and the USA. These facilities are 
used by people doing CMS detector and Grid operations, remote shifts, 
data quality monitoring and analysis, as well as for education and 
outreach.

We present the computing, software, and collaborative tools and 
videoconferencing systems. These include permanently-running 
"telepresence" video links (hardware-based H323, EVO and Vidyo),
Webcasts, and generic Web tools such as CMS-TV for broadcasting live 
monitoring and outreach information. Being Web-based and 
experiment-independent, these systems could easily be extended to 
other organizations. 

We describe the experiences of using CMS Centres Worldwide in the CMS 
data-taking operations as well as for major media events with several 
hundred TV channels, radio stations, and many more press journalists 
simultaneously around the world. 


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Title:   CMS Communications and Information Systems

Corresponding author: Lucas Taylor
Fermilab, P.O. Box 500, Batavia, IL 60510-5011, USA


Abstract
-------------------------------

The CMS Collaboration at the LHC has 3000 scientists and engineers from 
183 institutes in 38 countries, spanning Europe, Asia, the Americas and 
Australasia. We describe the CMS Communications and Information systems 
that serve the needs of this large and distributed community, such as: 
1) Communications Infrastructure (operations centres, videoconferencing 
   rooms, hardware and tools);  
2) Information Systems (web sites, document databases, publications and 
   conference management systems); and 
3) Outreach and Education systems for communications with other academics, 
   the general public and the media (TV, radio, press).

The systems used are described, including a number of the newer Web 2.0 
tools such as Wikis, blogs, tweets, live Web feeds, video, social 
networking and collaborative systems.