Have you looked at TiddlyWiki? http://tiddlywiki.com/ http://tiddlywiki.com/ It's a simple wiki-on-a-page, with collapsing and linking built in. You can also k

Have you looked at TiddlyWiki? http://tiddlywiki.com/ http://tiddlywiki.com/ It's a simple wiki-on-a-page, with collapsing and linking built in. You can also keep it completely off-line, or have it sync with your preferred solution (Dropbox in my case).