The fast-growing group of millionaire private college and university presidents hit a new record in recent years, and its likely more college leaders will make seven-figure salaries once the slumping economy rebounds. A record 23 presidents received more than $1 million in total compensation in fiscal 2008, according to an analysis of the most recently available data published Monday by the Chronicle of Higher Education. A record one in four in the study of 419 colleges mandatory IRS filings made at least $500,000.