Billionaire tech pioneers led a near-record year of giving by America’s super-rich in 2017, even as the country wrestled with income equality exacerbated by the wealth amassed by these same philanthropists:  https://www.philanthropy.com/article/America-s-Superrich-Made/242446?cid=pt&utm_source=pt&utm_medium=en&elqTrackId=b8825ade5b32422d944c2894706a487e&elq=2a9ebf734e3e4fe2a2a97d6c041671c1&elqaid=17740&elqat=1&elqCampaignId=7822