Some useful links, architecture related and otherwise:
People United for Sustainable Housing: a great local non-profit that is changing the face of Buffalo's Lower West Side.
Greenworks || Buffalo Niagara is a community organization dedicated to fostering the growth and development of local green businesses and green business practices, by connecting like-minded companies and individuals with one another and the resources they need to succeed. They sponsor a number of events throughout the year including: Green Drinks - Casual, bi-monthly networking events, presented in conjunction with USGBC, normally at a local bar or restaurant, on the 3rd Thursday, every other month; - Business Gets Green - Stay up-to-date on happenings in the local green community with this bi-monthly lecture series, held on the 3rd Tuesday every other month, alternating with Green Drinks and Tours of local green and sustainable businesses.
US Green Building Council: the group leading the push for green/sustainable construction in America. Responsible for the LEED (Leadership in Energy and Environmental Design) Building Evaluation Systems.
This site contains the latest information on recycling, Including a tool to locate recycling centers/events in your area.
Solar Action Alliance is a group of environmentalists who want to spread the word about the most clean, reliable, and abundant source of renewable energy: the sun. Their website provides visitors with many opportunities to get involved with solar, including a blog full of informative articles, location-specific solar infographics, and much more.
DSIRE is a comprehensive source of information on state, local, utility and federal incentives and policies that promote renewable energy and energy efficiency.
An Urban Explorer's Guide to the Buffalo-Niagara Region: Unique Landmarks, Historic Gin Mills, Old World Neighborhoods, History, Nickel City Oddities, Tours and More!  Run by Buffalo's own Airborne Eddy Dobosiewicz, aka "Maxwell Smart" and local historian Martin Biniasz.