Skrlla - Send $1 to charity in a single tap
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
CampaignWith - Teach a class to fundraise for a cause you care about
Wheelys Dreams - Crowdfunding for making dreams become real
UpEffect - Crowdfunding for social good products
Dollar A Day - Automatically donate $1 a day to featured nonprofits.