fine, video schering launched by twitter in january and as 40 million users. be six seconds or less. tumbler, microbe logging, backed by yahoo and since 2007 as more than 144 million logs. over 60 percent of teenagers use this service. this application, developing a social art community is pretty cool. since 2011 there has been $77,000,000.20 percent of users are under the age of 17. this publication lnched a year ago. posting their own voice tracks and live broadcast. 6 million users by the end of the year. 84 percent are under the age of 25. and number one side that teens are flocng to his snap chat. posts last between one and ten seconds. since its launch it has racked up 100 million users, not good news for parents since it is impossible to check. coming up, don't expect any hp this year from the irs. i want to tell you all about that. songs like this one, not going to be allowed. can you believe this? band this christmas season. is it legal? ♪ >> from our fox business studios in new york, here again is gerri willis. gerri: believe it or not, the grinches