This is another of the 'stickynote' type of resources. Just visit Corkboard.me and it'll instantly set you up with a page that you can use there and then. Type in your notes, move them around, link to images and so on. Share it with friends and let them collaborate as well. It's very basic in comparison with some other resources that are out there, but it's quick and simple, and that's always a good thing.