The following is a list of Online Wind Turbines. I plan to add more as I find them.
Western University Michigan runs a Renewable Energy Research lab where they have an online Skystream 3.7 wind turbine. (See Skystream 3.7 specs.) The Skystream 3.7 wind turbine is rated for a maximum of 2kW. They provide a web cam of the wind turbine and have a webpage that displays the power (kW), RPM, and accumulated power (kWh).
Wright-Hennepin Cooperative Electric Association is a non-profit, member-owned energy and service cooperative that serves more than 45,000 electric accounts in the Rockford, MN area. In there Renewable Energy Wind Power page they provide information and stats on their online Jacobs Wind Energy Systems 31-20 wind turbine and they have a page that also shows the wind speed and kWh produced.