Postica has to be one of the more single-serving Web apps I've seen in a long time. The service lets you create a slew of tiny sticky notes that can be maneuvered around the confines of your browser with ajaxian flair. They don't hover over pages you're looking at like Diigo or Fleck; instead it's all about your personal note space. Whatever notes you create are saved, and can be accessed from wherever. You can also share them with others, and they can send notes to your workspace, too.
Each note is confined to just 140 … Read more