Aurora Oliphant uses the internet to look up Bible scriptures on YouTube for her church meetings and comedy videos like Abbott and Costello. Oliphant, 70, is a recent graduate of the Senior Planet program, a 10-week course in Broward County through the South Florida Institute of Aging that teaches people 60 years and older the basics of using the web. The group is bridging the digital divide for seniors by teaching them to use computers and mobile devices. Students of the program learn to use