Good news for Dwango: in its latest financial report, the company says that Nico Nico Douga has counted 21.03 million users at the end of March 2011 (the end of fiscal 2011). 6.23 million users are using Nico Nico on cell phones.
Dwango also says that the number of premium members in Japan (who pay 525yen/US$6.50 per month for extra features) stands at 1.19 million.
What’s interesting is that Dwango managed to boost the ratio of paying Nico Nico users versus free members from 4.5% to 5.7% between March 2010 and March 2011:
