Kurt Wagner / Bloomberg:

Nonprofits say Facebook’s donation tools let them reach big audiences with minimal effort, but give them “virtually useless” data on actual donors  —  – Groups weigh donor relations versus network’s broad reach  — Company’s fundraising products have generated $3 billion

Nonprofits say Facebook's donation tools let them reach big audiences with minimal effort, but give them "virtually useless" data on actual donors (Kurt Wagner/Bloomberg)
Source: Tech Meme