Dec. 30

MOBILE BLOOD DRIVES. OWASA. 400 Jones Ferry Road, Carrboro. 11 a.m.-3:30 p.m.

American Red Cross, Orange County Chapter, 101 Ephesus Church Road, Chapel Hill. 942-4862; (800) GIVE-LIFE or www.ocncredcross.org.

AFTER CHRISTMAS BOOK SALE. Proceeds benefit the CHPL. Gift quality books including children's books, cook books, current and recent fiction and everything N.C. 3-5 p.m.

Chapel Hill Public Library, 100 Library Drive, Chapel Hill. 968-2780 or www.chapelhillpubliclibrary.org.

INTRODUCTORY COMPUTER CLASSES. Registration required. With courses about social networking, online job searching, r