ScratchR is a platform for sharing programmable media online, allowing people to publish their own interactive stories, games, and animations. ScratchR is the engine behind the Scratch online community, a social network of young programmers. Unlike other user-generated content communities, ScratchR makes it easy to reuse other people's creations to foster collaborative learning. ScratchR allows members to rate, comment, tag, and create galleries. ScratchR is to programmable media what YouTube is to videos.