TAP London - Tackling the homeless problem together
Tab for a Cause - Raise money for charity with each new tab you open
WeShelter - Unlock a donation when you pass a homeless person in NYC
Dollar A Day - Automatically donate $1 a day to featured nonprofits.
Catchafire - Use your professional skills to help charities
Ecosia - Ecosia is a green search engine that donates at least 80% of its profits from search ad revenue and...