Inside.com - Real news, curated by real humans
GoLocalBot. The project is closed - Platform for volunteers, NGOs, activists and crowdmapping.
Email Tuna - Explore newsletters without subscribing
GivingWay - Travel the world, do some good.
Squarespace Email Campaigns - Email, but pretty.
Volgistics - Volgistics is a volunteer management software solution, that helps to manage volunteers through the entire volunteer cycle.