DOWNTOWN/BRADDOCK: The Allegheny County Department of Human Services' KEYS Corps marks Martin Luther King Jr. Day with two day-of-service projects, starting at 9 a.m. One group of corps members is going to Braddock to help remove debris from and clean an abandoned church for use by the community. A second group is staying at the Human Services Building, Downtown, to assemble bags of donated toiletry items for distribution to homeless shelters. There, a video re-enactment of the "I Have a Dream" speech is being shown throughout the day with a poetry slam to follow.

GARFIELD: The Bloomfield-Garfield Corp. hosts its annual Martin Luther King Jr. Celebration from 1 to 3 p.m. at its Community Activity Center, 113 N. Pacific Ave. More than 30 presenters will honor the life of Dr. King through song, dance and the spoken word. Pittsburgh Mayor Luke Ravenstahl is scheduled to speak at 1:30 p.m.

HIGHLAND PARK: The Open Door and Union Project co-sponsor an evening of motivational entertainment at 7 p.m. to honor Martin Luther King Jr. and his vision of connecting communities, cultures and individuals. Held at the Union Project center, 801 N. Negley Ave., it includes step performances, local gospel choirs, readings of Dr. King's selected works and a message by the Rev. B. De Neice Welch of Shadyside Presbyterian Church. A community dinner at 6:30 p.m. precedes the program. Call 412-363-4550.

HILL DISTRICT: The Catholic Diocese of Pittsburgh's Office for Black Catholic Ministries, in collaboration with Central Blood Bank, sponsors the fourth annual Martin Luther King Jr. Blood Drive for Life from 1 to 6 p.m. at St. Benedict the Moor Church, Centre Avenue and Crawford Street. Call 412-456-3170.

OAKLAND: Carnegie Mellon University offers holiday events at the University Center, Forbes Avenue: At noon, a Community Collage and Choral Tribute to Martin Luther King Jr., plus a State of Diversity presentation by university President Jared L. Cohon; at 2:30 p.m., a panel discussion on whether Dr. King's ideals are a reality in Pittsburgh; at 4:30 p.m., a candlelight procession starting at Purnell Center; and at 5 p.m., a keynote address and reception featuring guest John Wideman. During a 7 p.m. dinner program, the Black Graduate Student Organizations of Carnegie Mellon and the University of Pittsburgh discuss the meaning and relevance of Dr. King's speeches to young scholars in the world today. For a complete schedule, visit www.studentaffairs.cmu.edu/first-year/mlk or call 412-268-4886.

SCHENLEY PARK: Student Conservation Association and Venture Outdoors hold events from 1 to 4 p.m. at Schenley Park Ice Rink, Overlook Drive. The program, which features a keynote presentation about Dr. King, celebrates equality and diversity with activities for participants of all ages, such as sled riding, ice skating and art projects. Call 412-255-0564, Ext. 25.