Content management system

CMS

Below are some different CMS

WordPress

Features:

               - Full standards compliance

       	- allows you to manage non-blog content easily

- password protected posts

Modules:
- podcasting
- plugin for different forum software (SMF, Vanilla, bbPress, phpBB, PunBB)

Skins: Yes

MediaWiki

Features:
- the wiki software Wikipedia is built off of
- easy for users to edit pages

Skins: Yes

PhpBB

Features:
- opensource bulletin board - Skins: Yes

Drupal

Features:
- collaborative book (create a "book" and let other contribute to it)
- personalization
- all content is fully indexed and searchable
- threaded comments
- version control
- blogger API support -- update using different tools

Modules: - abuse: allows users to flag nodes and comments
- accessibility: creates web sites specifically made for mobile browsers from one code base.
- Lots of different ones.

Skins: Yes

Joomla

Features: - Modules:
- dynamic form builders
- image and media galleries
- forums and chat
- calendars

Skins: Yes

Elgg

Elgg: Features: - blogging - social networking - podcast - user profiles - rss support - create communities - collaborative community blogs - publish to blog Modules:

Skins: Yes