The U.S. Green Building Council's LEED website provides tools for building professionals.

A calendar of green building industry conferences  LEED certification for buildings has to involve either new construction or a  major renovation. If you're already in the building, and are not still in the  construction/renovation process, LEED certification is not likely.  However,  simple improvements to existing structures can save still businesses money. Cost saving ideas can be found in the news and case studies on this page  as well as the GreenGopher product guide with over 120 green or clean products.