Wren - Offset your carbon footprint by saving rainforests
Offset List - Companies that are offsetting their carbon emissions.
Neutral - Offset your carbon emissions, right from your shopping cart
Cloverly - An API for carbon offsets 🌎
Trip to Carbon - A carbon footprint calculation API for travel.
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.