Wren - Offset your carbon footprint by saving rainforests
Giftbit Payment API - Stripe for gift cards
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
Raise - The easiest way to save money on the go
Treepoints - Fight climate change and earn rewards
Gemnote - Handwritten cards & premium custom gifts for companies