Museum of Websites - Curated gallery of how internet companies changed over time

Wren - Offset your carbon footprint by saving rainforests

Vibe Boost - An interactive digital museum of video-based art.

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.

Endangered Sounds Museum - Nostalgic sounds from the past

Treepoints - Fight climate change and earn rewards