Note 13 - Stock-Based Compensation (Details) - Stock-Based Compensation Expense (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	$ 850,642	$ 1,026,570	$ 2,761,566	$ 3,056,661
Selling and Marketing Expense [Member] | Continuing Operations [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	103,521	95,399	266,663	256,662
Product Development And Content [Member] | Continuing Operations [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	583,523	475,616	1,175,680	1,426,332
General and Administrative Expense [Member] | Continuing Operations [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	163,598	455,555	1,319,223	1,222,161
Continuing Operations [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation	850,642	1,026,570	2,761,566	2,905,155
Discontinued Operations [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation				$ 151,506