For users accustomed to online wikis like the Web service Wikipedia, this freeware app is a great find. Whether you're into comparative literature or computer programming, you're going to need to take and organize notes. The big bonus with WikidPid is that, like Wikipedia, you can link notes from one to another in various paths, but like Notepad, everything is localized.
The layout will be familiar to users of Notepad and the more advanced Notepad analogues like NoteTab Light. The left pane is a tree of nodes, while the main window displays the wiki page you're currently viewing. The trick is getting familiar enough with the wiki format. Once the user is comfortable with it, though, WikidPad helps you wikify any aspect of your work, or even your life. The stand-alone, open-source app sports some useful features to help you along, including the absolutely essential on-the-fly linking. This occurs based on CamelCase and other criteria outlined in the included WikidPad documentation. Reading said documentation is equally essential before using the app, and the app could benefit from some clear and concise tutorials, or links to ones online.
Even with this steep learning curve, WikidPad's utility can't be understated. If you find it works well for academic classes, it's easy to use the software to track information, schedules, and news for athletic teams, community projects, and other personal pursuits.