Zim brings the concept of a wiki to your desktop. Store information, link pages and edit with WYSISYG markup. Creating a new page is as easy as linking to a non-existing page. Pages are stored in a folder structure, like in an outliner, and can have attachments.
This tool can be used to keep track of TODO lists or ideas, to take notes during a meeting or to draft any other kind of text (blog entries, important mails, etc.).
Zim handles several types of markup, like headings, bullet lists and of course bold, italic and highlighted. This markup is saved as wiki text so you can easily edit it with other editors. Because of the autosave feature you can switch between pages and follow links while editing without worries.