CNN iReport, the network’s participatory news community, celebrates its fifth birthday today, commemorating the anniversary in different locations all over the world. The initiative has grown into a global force, receiving a submission from every country on the planet with an average of 2.4 million unique users each month through June 2011, according to ComScore. iReport is organizing the ultimate birthday party via http://meetup.com/CNNiReport, with iReporters from more than 50 cities all … [Read more...] about CNN iReport turns five