According to Ethnolgue.com, there are currently 6,909 living languages in the world, 993 of which are in the Americas. No wonder it can be so hard to communicate.
And then there is this. According to Internet World Stats’ Top Ten World Users by Language, English is used by 499.2 million Internet users, followed by Chinese at 407.7 million users. Spanish is a distant 3rd at 139.8.