UpEffect - Crowdfunding for social good products
Fonolive - For everything fun and local, you can find it on Fonolive
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
billage - Billage is the CRM and invoicing software for SMB anf freelances. Create invoices, track your time and organize your tasks with Kanban
eSolidar - Charity shops and online auctions to support great causes
AOG.Jobs - IT Talent matcher to find remote developers