] Jewel entertained at halftime of the Nets-Spurs NBA ] Finals game last Sunday - and did so again about a ] half-hour later. ] ] But she was accompanied by a laptop, not a microphone and ] fellow musicians, for the later performance. On press ] row, 15 feet from the Continental Arena court, the ] Alaskan-born pop star answered live questions online from ] fans on the NBA.com Web site. ] ] Welcome to the 21st century NBA, a league run by a ] commissioner nicknamed "Digital Dave" - Teaneck native ] David Stern - because of his fondness for the latest in ] telecommunications and high-tech gadgets. Welcome to the 21st century NBA |