Those of you interested in eco-friendly building may want to check out the GreenSpec Directory, which “includes information on more than 1,750 green building products carefully screened by the editors of Environmental Building News, organized according to the 16-division CSI MasterFormat(tm) system.” If you don’t know what the 16-division CSI MasterFormat(tm) system is, well dude, get with it!  You can find it over on — like all their stuff, it’s got no advertising or sponsorships, so it should be the straight scoop.