This is a wiki of sorts inspired by Voodoopad and Tiddlywiki. You use it by typing in a box. Select some text and press link to create a new page.
Rather minimalistic -- should appeal to those who like the power of the simple tool.
http://www.bennolan.com/uploads/gunja.html
Is there an updated link to GunJa? The above link ends at an error page at GitHub.