Here are a couple of sites that I use to help stay ahead on what is coming up for commercial buildings.
http://www.BuildingGreen.com
http://www.maintenancesolutionsmag.com
http://www.housingzone.com
online magazines
http://email.rbidigitaleditions.com/cgi-bin7/DM/y/eBAES0UyJKp0cj80HP5p0AZ
http://email.rbidigitaleditions.com/cgi-bin7/DM/y/eBAD10UyJKp0cfX0HPxK0Aw
Hope this helps someone.