Although Boulder has an impressive stable of businesses in the green / sustainable / eco milieu, Fort Collins, a perennial David to Boulder’s Goliath, is gaining a strong base with the addition of CEO Casey Verbeck to the GenGreen team (who’s got so much going on that he doesn’t have time to update his LinkedIN profile).

The site is building local guides for cities around the US (to start), and will be merging them with the usual social network tools. They’re just about ready to mix-in commerce, which has the eco market quite excited. Casey told me that there are over 120 green businesses in Boulder without a storefront, and no easy way for people to locate them. He’s committed to organizing that market.

Surrounded, as we were, by the beautiful people at Boulder’s Saxy’s, Casey reported that he’s got all engines running full-ahead, and it looks like the group is hitting the green zeitgeist at just the right moment, with businesses of all sizes knocking down their doors and investors lining up in record time. They have made enormous progress with new hires, a new site launch and many milestones coming up in quick succession.

Look for Casey speaking at just about every stop on the eco.nference tour this year, opening up for Da Mayor Michael Bloomberg in NYC at the GoGreen Expo.

It’s going to be a crowded marketplace as green media brands vie for the attention of the socially green generation. Will this shade of green prevail?