"I can't say I've been a big investor in green companies simply because from the technological side I'm not as attuned to it as I probably should be," Cuban admits. "It's not really one of my strengths but from a personal perspective I try to be as supportive as possible. I haven't looked at a lot that's eco-driven. It's become a bit of a gold rush and people are trying to take advantage so I've been hesitant to get in because I don't have the experience. It's way out of my normal area of expertise," he acknowledges. "I'm starting to read more about it, but I'm having enough trouble keeping up with the things I'm supposed to be good at!"