The Chronicle of Philanthropy’s third annual survey of “America’s most-generous donors” shows a huge drop in giving – the total for the largest 60 givers declined from $12.7 billion to $4.6 billion. “A troubling sign of the slowdown: a growing tendency among donors to make long-term pledges rather than outright cash gifts. Some donors also are delaying payments on previous pledges, and fund raisers see an increasing reluctance among wealthy people to make new giving commitments of any sort.”