Creddon - Tweet for a cause and a sponsor will donate $1 to charity
Involve - Get behind-the-scenes access to your favorite nonprofits
eSolidar - Charity shops and online auctions to support great causes
All or Nothing - Competitive donations for causes you care about.
Wheelys Dreams - Crowdfunding for making dreams become real
Software Donation - Donate tools to enable remote work during COVID-19 outbreak