Summary of Significant Accounting Policies (Details 2) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Dec. 31, 2010
Summary of revenues:            
Advertising revenue $ 26,938 $ 137,465 $ 288,082 $ 153,234 $ 374,175 $ 254,753
Subscription revenue 4,304,763 4,953,561 15,001,709 13,501,480 18,781,368 6,413,874
Revenue $ 4,331,701 $ 5,091,026 $ 15,289,791 $ 13,654,714 $ 19,155,543 $ 6,668,627