If you gather enough snowflakes, you can create an avalanche.

Thousands of worthy organizations rely on individual donations to do good work in the world. And there are millions of people who feel compelled to donate, but they might think their modest contributions won't really make a difference.

But they do — especially when enough people show up. When we hear about a major donation, it's easy to think that those are the ones that really make a difference. And, no doubt, those windfalls create big opportunities.