A Personal Wiki Software should have a variety of ways to insert hyperlinks.1
Insert link in a note that when clicked goes to another note in the same or a different notebook.2
Insert link in a note that when clicked goes to a web site.3
Insert link in a note that when clicked opens an external document file in its application. For example, you can open an Excel document in Microsoft Excel. A link can also open a folder if needed.4
All above links can also be inserted in the List of notes to so that when you double-click on an item, it opens the link for you. So you can make a bookmark manager or document launcher by using such a list.
Read some more discussion, See next slide