or counterweight position sensor signal 152 interface module 202 also interfaces to the counterweight actuator drive 126 and sends actuator drive signal 150 to the actuator network interface 206 couples the computer control module 136 to other network nodes e g a central control node controlling a plurality of wind turbines in the same local vicinity and or to the internet in some embodiments at least some of the sensor input information used by computer control module 136 is from sensors located at other sites and or at least some of the sensor information is communicated via network interface 206 for example a wind direction sensor may be located at a nearby site and correspond to a plurality of wind turbine systems in the same local vicinity and its information may be communicated via the internet and network interface 206 routines 210 include a sensor information recovery module 214 an actuator command module 216 an oscillation damping module 218 and a steady state balance module 220 data information 212 includes wind speed information 222 wind direction information 224 tower motion information 226 main drive shaft information 228 counterweight position information 230 generator load information 232 stored oscillation model information 234 stored steady state balance model information 236 and determined counterweight position control information 238 sensor information recovery module 214 processes signals from various sensors e g tower motion sensor signal tower position sensor signal wind speed sensor counterweight position sensor shaft position sensor etc oscillating damping module 218 uses data information 212 including tower motion information 226 and stored oscillation model information 234 to determine damping adjustments e g determine counterweight positioning control to respond to tower motion.