If you would find useful to have the ability to create web pages on the fly, using your web browser as editor, but with WYSIWYG capabilities, you've got to try TiddlyWiki (http://www.tiddlywiki.com/). From the creators:
"TiddlyWiki is a single html file which has all the characteristics of a wiki - including all of the content, the functionality (including editing, saving, tagging and searching) and the style sheet. Because it's a single file, it's very portable - you can email it, put it on a web server or share it via a USB stick."
This is open source, free, fast, portable across platforms, and easy to use. I found a very nice place for hosting my personal wiki, www.tiddlyspot.com. If you are fond of html, this does not get better.