Haystack is a tool designed to let individuals manage all their information in ways that make the most sense to them. By removing arbitrary barriers created by applications that handle only certain information “types” and that record only a fixed set of relationships defined by the developer, we aim to let users define whichever arrangements of, connections between, and views of information they find most effective. Such personalization of information management will dramatically improve everyone’s ability to find what they need when they need it.