ActoTracker is an application for keeping track of activities on your desktop so that you don't have to. Think of it as an app for bookmarking desktop documents and applications. It can also bookmark things that are not usually tied to a URL such as Outlook email message or Filemaker records. It can be extended to handle additional applications by writing custom AppleScript plugins. ActoTracker is somewhat inspired by the GNOME Activity Journal (Zeitgeist framework), and it tries to solve a similar kind of problem for the end user, although in a different way.
BackPlay a program that plays music files from a folder in the background. At login, it scans a directory called "BackPlay" under the user's Music directory, and begins playing any music files it finds there in random order. BackPlay is independent from iTunes. It can be paused from an icon in the status area.
Books stores, sorts, and searches a "virtual card catalog" for a personal library. It makes it simple to enter new books, edit the information of older books, and sort the books by attributes such as title and author. Books also includes built-in searching for quick book information retrieval, and XML support for importing and exporting collection information in HTML and XML.
CHDecide (formerly known as iDecide) will ask you to estimate how likely you are to succeed with an option, how much it's worth for you and how much it hurts if you fail. It will then compute which option is expected to give the most happiness. The program uses the expected-utility theory to make predictions of which option you should choose. You might think that you don't need a program to make your choices, but research has shown that humans are surprisingly bad at picking the most logical choices.
EdPAD is useful utility doe creating, editing, and validating Portable Application Description (PAD) files. Documents are validated immediatelly while filling them with data. All required or badly formed expressions are instantly marked up. Files are validated using 2.01 PAD specification.