Charities' ambitions are poised to outstrip the potential growth of charitable giving. More money is available, but it needs to be unlocked, says Natasha van Bentum of Give Green Canada.

That's why she's become an evangelist for the emerging trend towards "social finance," an approach to capital markets investing that will expand the world of traditional support for nonprofits.  

She's working with SEE Change Magazine to gather information about the level of awareness about market-based solutions for donors who want to promote change and nonprofit sustainability.   She'd like you to participate in the short survey that she and her partners have created. It takes just a few minutes, and you'll be entered in a draw to win a copy of Impact Investing.