Quoting Joey Rockhold <joey.rockhold at gmail.com>:

> I use a piece of Windows software, of which I have been trying to find a
> linux equivalent that is just as useful.  The software is called
> KeyNote, which can be found at the following link:
> http://www.tranglos.com/free/keynote.html
>
> This software does work in WINE, but I would rather find linux-native
> software.  I have tried TomBoy, and FreeMind, but neither work how I
> want them to for note taking.
>
> Does anyone have any suggestions?
>
> Thanks!  - Joey


Leo is a nice editor for outlines if you like a more "Windows" look and feel. 
For a more "Unix" approach Emacs has some outline support with allout and
outline mode, and vim has support via vimoutliner.

http://webpages.charter.net/edreamleo/front.html
http://www.emacswiki.org/cgi-bin/wiki/CategoryOutline
http://www.vimoutliner.org/index.php

--
Lee