Creddon - Tweet for a cause and a sponsor will donate $1 to charity
DonatePal - The new way to donate to charities
TAP London - Tackling the homeless problem together
Involve - Get behind-the-scenes access to your favorite nonprofits
UpEffect - Crowdfunding for social good products
The Pineapple Fund - Donating $86 million of bitcoins to charity 🍍💸❤️