TODAY

Maine Office of Tourism visit, 10 a.m. to noon, Community Center, 39 Poulin Drive, Skowhegan. A Kennebec Valley Tourism Council regional meeting for members and local businesses to learn more about the websites, promotional campaigns, branding and social media. Register with Tanya Bentley at 623-4883 or tanya@kennebecvalley.org.

“The Palestinian Plight,” noon to 1 p.m., CIEE, 300 Fore St., second floor, Portland. Part of the Global Connections Lunchtime Series with Jim Matlack. Presented by the World Affairs Council of Maine. Bring a lunch. The program is free, with donations accepted. For more information, visit www.wacmaine.org or call 221-4386.

“Writing a Business Plan: Why You Need One and When to Revise It,” 6 to 9 p.m., SCORE offices, 100 Middle St., second floor, East Tower, Portland. The cost is $35 with online registration. For more information and reservations, visit www.scoremaine.com or call 772-1147 weekday mornings.

WEDNESDAY

Open House, 10 a.m. to 2 p.m., Black Bear Medical, 275 Marginal Way, Portland. A portion of sales to benefit Veterans No Boundaries, a program of Maine Handicapped Skiing that provides free adaptive sports activities for disabled veterans and active-duty personnel. Call 871-0008 for details. The event continues from 1 to 5 p.m. Thursday.

THURSDAY

“Business Start Up Basics,” 9 a.m. to noon, SCORE offices, 100 Middle St., second floor, East Tower, Portland. The cost is $35 with online registration. For more information and reservations, visit www.scoremaine.com or call 772-1147 weekday mornings.

Open House, 1 p.m. to 5 p.m., Black Bear Medical, 275 Marginal Way, Portland. A portion of sales to benefit Veterans No Boundaries, a program of Maine Handicapped Skiing that provides free adaptive sports activities for disabled veterans and active-duty personnel. Call 871-0008 for details. Continuation of Wednesday’s event.

FRIDAY

A 90-Day Planning Workshop for Business Owners, 7:30 a.m. to noon, Embassy Suites, Portland Jetport. For more information or to register, contact ActionCoach of Northern New England at 847-9210 or visit www.actioncoachmaine.com.

“The Politics of Conscience: Margaret Chase Smith and Today’s Political Climate,” 8:30 a.m. to 3:30 p.m., Good Will-Hinckley, Hinckley. Conference presented by the Maine Humanities Council. To register, visit www.mainehumanities.org or call 773-5051.

Aging Well Living Well Expo, fourth annual event, Sunday River, Newry. Keynote speaker is Connie Jones, community services director of SeniorsPlus. Space is limited, and early registration is requested. The cost is $20 per person, which includes all activities, workshops and meals. For more information and to register, call (800) 427-1241 or visit www.seniorsplus.org.

SATURDAY

Green Buildings Open House, 10 a.m. to 4 p.m. Cumberland County homes, businesses and schools that use renewable and green building technologies will be open to the public. Sponsored by the Northeast Sustainable Energy Association. For more information and a list of participating sites, go to www.nesea.org.

COMING UP

“The Arab Spring: Origins and Future?” 5 to 6:30 p.m. Monday, University of Southern Maine, Wishcamper Center, Room 133, Portland. With Mary-Jane Deeb, chief of the African and Middle Eastern Division at the Library of Congress and a frequent media commentator. Presented by the World Affairs Council of Maine. The cost is $10 for members and $15 for nonmembers. Register by Friday at www.wacmaine.org or call 221-4386.

“Brunswick Landing: Maine’s Center for Innovation,” 4:30 p.m. Oct. 5, guided “windshield” tour and after-hours social event at the former Naval Air Station in Brunswick. Steve Levesque, executive director of the Midcoast Regional Redevelopment Authority, will discuss development at the site. Preregistration is required. For details and to register, visit www.mereda.org.