At Greenbuild 2009 in Phoenix, we celebrated "Main Street Green" with some 27,373 people who connected to the conversation in new and exciting ways. With the largest expo floor and most educational sessions to date, and an opening plenary session so big it was hosted at Chase Field, Greenbuild Phoenix was a year to remember. You can relive memories – or see what you missed if you were unable to attend – here!

As one of the first cities to adopt LEED for public buildings and the city that is home to more LEED-certified buildings than any other, Chicago is truly committed to leadership as a "next-generation" city – the perfect place for us to celebrate being part of Generation Green.