Donor platforms

Donor platforms, such as Global Giving, Altruistiq, Network for Good, First Giving and Guidestar. Internet donor sites dramatically reduce the cost of fundraising (estimated at between 15% and 33% of funds raised in the US). We can expect similar sites to develop features like donor forums, star ratings, Good Giving Guides and Amazon type links (those who have given to x have also given to y and z).