WeShelter - Unlock a donation when you pass a homeless person in NYC
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
TAP London - Tackling the homeless problem together
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
Catchafire - Use your professional skills to help charities
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems