Targeting the corner office? Brand marketers may want to rethink reducing their print media budgets. According to the latest Business Elite Study, nearly half of C-level executives said the Web “has made little difference” in their reading of business magazines. (Old habits die hard.) But at the same time, about two out of five chieftains are using a  business publication’s Web site as part of their daily routine. The study includes stats on main sources for business news among C-level executives and where they turn to first for information to help them do their job better.