The Memphis Area Association of Realtors and Lifeblood host a blood drive from 9 a.m. to 5 p.m. today in the Martin Edwards Jr. Education Center at the MAAR offices, 6393 Poplar Ave. Call 818-2423.

The Germantown Area Chamber of Commerce presents a networking and general membership meeting at 11:15 a.m. today at Germantown Country Club, 1780 Kimbrough Road. Cost is $15 at the door. For details, call 755-1200.

The Metropolitan Planning Organizations Transportation Policy Board meets from 1:30 p.m. to 3 p.m. today at the Shelby County Visitors Center, 500 N. Pine Lake Drive. For more information, contact J. Carter S. Gray at 379-7840 or visit www.dpdgov.com.

The Building Owners and Managers Association of Memphis hosts its fourth annual BOMA Bucks Auction and holiday function at 6 p.m. today at Holiday Inn-University of Memphis, 3700 Central Ave. Cost is $40. For details, visit www.bomamemphis.com.

The Memphis Bar Association presents Maximize Your Mediation Efforts from noon to 5 p.m. Friday in the MBA conference room at the NBC Bank Building, One Commerce Square, Suite 1050. Cost is $145 for members, $165 for non-members and $110 for attendees not earning continuing legal education credit. Call 527-3573.

The Mid-South chapter of the American Red Cross offers an adult CPR class from 8 a.m. to 6 p.m. Saturday at the Red Cross offices, 1400 Central Ave. Cost is $25. Call 726-1690.