>> FARM AID MOVES TO NEW ENGLAND— Farm Aid has been set for Sept. 20 and headliners will include Willie Nelson, Neil Young, Dave Matthews and John Cougar Mellencamp. Presented by Whole Foods Market and Horizon Organic, the event will be held at the Comcast Center in Mansfield, Mass., its first New England date. Contact: Maria Enie, (202) 331-4323 >>SPECTRUM TO CLOSE NEXT YEAR —The Wachovia Spectrum in Philadelphia will close its doors for good at the end of the 2008-09 hockey and soccer season. The decision was announced by Comcast-Spectacor Chairman Ed Snider. Contact: Ike Richman, (215) 389-9552 >>>OREGON ADDS GREEN EVENTS —The Oregon Convention Center is slated to host more than 20 sustainability-focused trade shows and events from now to 2010. The events are expected to bring more than $4 million in direct revenue to the Center. Contact: Karen Totaro, (503) 731-7901 >>NBA HOSTS  ANNUAL SUMMER LEAGUE —The National Basketball Association will go into the second year of hosting its 10-day summer league, consisting of 21 NBA teams playing at least four games per day. The event will be hosted at the Thomas & Mack Center and Cox Pavilion, Las Vegas. Contact: Dawn Sousa, (702) 895-1117