Life is looking better and better for entrepreneurs and investors in clean tech and green products these days. Entrepreneur Magazine's December issue includes a story highlighting the potential. Most notable: "Research firm Clean Edgeexpects the worldwide market for clean energy to reach $167 billion within a decade, up from $40 billion in 2005."

No wonder, then, that everywhere I turn, more people seem to be jumping on the bandwagon. Green Business News in the UK reports that "The rapid growth of the market for firms producing environmentally sustainable and ethical products and services was again highlighted this week after a new survey revealed sales of "ethical" goods in the UK were now worth more than retail sales of beer and cigarettes." At the same time, Los Angeles' ABC affiliate reports that more and more Americans are switching to green products.

Up the Pacific Coast, the San Francisco Chronicle reported today that New Resource Bank's LEED Certified offices are now open for business, with a "focus on serving sustainable businesses, environmental entrepreneurs and individuals concerned about the environment."

As a veteran of the PC computer boom of the early nineties and the Dot Com explosion of the mid nineties, I gotta say this feels very familiar. At the Investing in Clean Energy conference I attended last month, the moderator asked the room full of venture capitalists how many of them were there because investing in clean tech is the "right thing" to do. As you'd expect, not a single person in that room raised their hand.

Money and smart minds – many of them from those earlier technology booms – are piling into this space right now. Of course, there will be winners and losers along the way, but as long as the momentum keeps building, things are just going to get more and more interesting.