The Memphis Regional Chamber will host its Breakfast Forum today from 7:30 a.m. to 9 a.m. at the Memphis Marriott East, 2625 Thousand Oaks Blvd. Memphis Mayor Willie W. Herenton will present "Memphis: Achieving its Potential." Space is limited. R.S.V.P. to Tunga Lee at 543-3571 or tlee@memphischamber.com.

The Collierville Chamber of Commerce will hold the 2007 Collierville Business Expo today from 9:30 a.m. to 4 p.m. at the Cox Community Center, 440 W. Powell Road.

AIGA (American Institute of Graphic Arts) Memphis Chapter will hold "AIGA Open Haus: Oden, a Redesigned Design Firm" today from 5:30 p.m. to 8:30 p.m. at 119 S. Main St., Suite 300. The event is free to AIGA members and $10 for nonmembers. For more information, contact Ashley Burton at ashley@creativeinferno.com.

The Memphis Advertising Federation will hold its annual seminar with workshops to help nonprofit organizations with marketing communications, public relations and advertising Friday from 8:30 a.m. to 4 p.m. at the Community Foundation, 1900 Union Ave. Registration is $95 at the door, including breakfast and lunch. Contact Sally Baker-Brenner at adfed1@memphisadfed.org or at 748-8889 to register.

The Alliance for Nonprofit Excellence will hold a "Strategic and Business Planning: What's the Connection?" workshop Friday from 9 a.m. to 4 p.m. at The National Foundation for Transplants, 5350 Poplar Ave., Suite 430. The event is $99 for Alliance members and $150 for nonmembers. For additional information, contact April DeBerry at 684-6605 or adeberry@npexcellence.org.

The Memphis Bar Association will host "Professionalism, Civility and Courtesy" Friday from 1:45 p.m. to 5:15 p.m. at the University of Memphis Fogelman Executive Center, 330 Innovation Drive. Call 527-3573 for cost and registration information.

Memphis Area Legal Services Inc. and the Shelby County District Attorney General's Office will hold the third annual Regions-Morgan Keegan Legal Legs for Justice 5K Run/Walk Friday at W.C. Handy Park at the corner of Beale and Third streets. Registration begins at 4 p.m. and the race is at 6 p.m. Race fees are $10 per person for a team of five or more, $12 per person for early registration or $15 per person on race day. For more information, contact Kristen Myers at kristen@howellmcquain.com.

Rhodes College will host mezzo-soprano Barbara Simmons and pianist Tom Bryant to perform "French Music Hall: Remembering Edith Piaf" Friday at 7:30 p.m. in Hardie Auditorium. The event is free and open to the public. For more information, call 843-3775.

The Center City Commission's Diversity Committee and United Housing Inc. will host a two-day beginner's class on real estate development Friday from 8:30 a.m. to 5 p.m. and Saturday from 8:30 a.m. to 2 p.m. at the Marriott Springhill Suites, 21 N. Main St. Registration is $100 and is open to the public. For more information, call 575-0581 or visit www.downtownmemphis.com.