Twitter has finally come to the stock market at a time when all shares are on the way up, and even Facebook has recovered considerably from the depths it had plunged into from the beginning of this year.  I cannot say that I use Twitter every day, but certainly when I am bored I do tend to try and follow the news that way and I find it particularly interesting during major sporting events, where you can see the comments of other fans and complaints about referees, etc.  I would be interested to know though, for those of you on Twitter, who you follow that you find of particular interest.  

The most popular Twitter user at the moment is Katy Perry, who on 7 November 2013 had 46,7 million followers – she no doubt has more already.  The challenge for Twitter of course is going to be how to make money out of advertising, which is a similar issue to Facebook but perhaps with even less space to do it in, so we are no doubt going to see more sponsored tweets and possibly adverts, but it certainly is a universal phenomenon, with approximately 75% of Twitter users living outside of the United States.