Virtual Cycling

In winter or when I am older I may want to do virtual cycling. 
http://virtual-cycle.com/
https://www.youtube.com/watch?v=C7c6FWNtHhM

There is another start up here
http://thevirtualbike.com/

Commercial software for virtual cycling include
http://www.wattzap.com/ 
https://www.youtube.com/watch?v=_O7VgaZMDrQ

And probably the industry leaders from Holland. 
https://www.tacx.com/
https://www.youtube.com/watch?v=5jhwfrWwH5o

https://www.cycleops.com/virtualtraining/overview
http://www.bkool.com/turbo-trainer

http://cycling.wikia.com/wiki/Virtual_Cycling

Video exchange forum
http://www.route4u.dk/index.php/rlv

The best machines are freem motion rollers I believe from [http://tinyurl.com/q8q8pq7 e-motion], but there are [http://tinyurl.com/petwgxa DIY videos]　[Especially this https://www.youtube.com/watch?v=bdkUSQeJQjY] to make them too. Another option is Tacx Galaxia which are a lot cheaper. They are also about the same price as the Cyclceops used to make DIY e-motion free motion rollers so if the rocker were insufficient one might put them on wheels.