Ecosia - Ecosia is a green search engine that donates at least 80% of its profits from search ad revenue and...
LoveSales - Find and save products you love, get alerted when they go on sale.
HandUp Campaigns - Assemble your community to donate to those in need
TrackIf - Alerts you if the price of your favorite products drop
Tab for a Cause - Raise money for charity with each new tab you open
Giftwhale - Giftwhale allows you to create personalised wish lists online.