A few weeks ago, I did a blog entry looking at how investment in renewable energy will eclipse the amount of money that poured into the Internet.?

That's one big call. Still, now we have a University of California study, reported here, showing that the amount of venture capital channelled into renewable energy actually doubled in the 12 months from 2005-2006.

No doubt, energy consumption is driving much of this trend. Energy efficiency is turning into the holy grail.