What is the worldwide market share of Instant Messenger (IM)?
In June 2011, with a share of 40.67%, Windows Live Messenger dominates the IM market, followed by Skype (now acquired by Microsoft) with 27.39%. With 15.11% Yahoo! Messenger is in third place, followed by TENCENT QQ with 4.95%, Google Talk with 3.56%, Gadu-Gadu with 2.46%, and ICQ with 2.01%. Source: http://www.opswat.com/sites/defa…