European Organisation for Nuclear Research (CERN)
The European Organisation for Nuclear Research (CERN) is the most effective international organisation on Twitter, since its tweets are retweeted on average 130 times. CERN opened its first Twitter account on 7 August 2008. @CERN tweets in English and in French @CERN_FR. The recruitment team also created a Twitter account for job openings @CERN_JOBS and provides advice, hints and tips for interviews. CERN also maintains specific Twitter accounts for each of their experiments: @CMSexperiment, @ATLASexperiment and @LHCbExperiment and often retweets and @mentions them. @CERN promotes its regular Google+ hangouts on specific research topics with the hashtag #HangoutWithCERNand encourages its Twitter followers to send questions via the hashtag #askCERN. Its most popular tweet, posted on 4 July 2012 is about the discovery of the Higgs boson in the large hadron collider.