: People have a large amount of information that they wish to maintain awareness of, but yet forget to check or are too busy to check it on a regular basis. Examples of this information include weather forecasts, stock quotes, traffic reports, and financial accounts. This information can be quite important, but monitoring it is not properly supported by existing tools which focus only on the user’s primary tasks. This research investigates the intricacies of awareness information, develops systems to aid users in monitoring it, and proposes principles for future systems.