IF YOU’RE LOOKING to party, network or support a good cause this week, check out: 

TUESDAY

MAINE INNOVATION ECONOMY SUMMIT, 3 p.m., USM’s Abromson Community Center, Portland. Network with others after the keynote and before the gubernatorial candidates forum. $25. 780-5960. 

FRIDAY

BIDS FOR KIDS AUCTION, 5:30 p.m., Holiday Inn by the Bay, Portland. Enjoy appetizers and drinks, bid on silent and live auction items and meet the Big Brother and Big Sister of the Year. $50. 773-5437. 

FIRST FRIDAY ART WALK, 5 to 8 p.m., throughout Portland. Visit galleries and art venues and enjoy refreshments. Free. For more information, visit www.firstfridayartwalk.com.