You already know. I would say ninety percent of the deals I see getting funded in the US and Europe are in these areas. I think it's because it's relatively easy to see where certain trends are going. Broadband is the coming thing. Wireless will be huge.
Data storage has to become an enormous market.
Deciding to get involved in these fields is easy. At each VC firm, I believe, they have their whiteboards with their wish lists. And when the right team shows up with a plan, the firm invests. I think I've seen 2,000 optical companies funded since last fall. I don't think they'll all succeed.