SubstanceIs.com
Concept
A webpage that allows users to create webpages simply by adding their content in an organized fashion. The website will then handle all layout automatically. Users control their page via a set of custom views/templates. Users can set their own color schemes, and configure a number of other options. For the time being you can play with a running copy of this code at SubstanceIs.com.
Status
This site does everything it was intended to, allows users to create accounts and then create their own webpages, which are then hosted on the site. A fairly successful implementation, although not particularly exceptional. Someone interested in making use of this code might benefit from redesigning the user administration section to take advantage of javascript for more seemless editing.
Features support for TinyMCE, although the TinyMCE libraries are not included in the source, so they will need to be downloaded elsewhere.
Recommendation
Anyone wanting to use this could would probably be best served by borrowing parts and reading the code, but it may not be a good investment of time to build on it as is. Specifically I was uncomfortable with generic views at the time when I implemented this, and a healthy dose of generic views would simplify parts of the code (although the user webpage editing system would not particularly benefit from generic views, so the majority of the code is salvagable).
The Source Code
The source code for SubstanceIs can be checked out from its svn repository:
svn co http://www.willarson.com/gallery/
t is released under an MIT license, which means you can do pretty much anything you want with it, including using it in a proprietary system.