There are several different types of CMS, and they vary widely in terms of their fundamental orientation and feature set:
| Name | Language | Platform | Features | Comments |
| Conventional CMS's |
| MySource |  |  |  | FOSS. Popular in Australian Govt. (which is contributing back apps and templates) |
| Bricolage | Perl | mod_perl, Mason |  |  |
| WebGUI | Perl | mod_Perl | Message boards, Polls, User contributions, news, calendars, articles | FOSS. |
| PostNuke | PHP | LAMP | News publishing, CMS, banners, forums, reviews, sections, stats | FOSS. Modular CMS |
| OpenCms |  |  |  |  |
| Contentment |  |  |  |  |
| Drupal | PHP |  | blogs, templates, polls | FOSS. |
| Mambo | PHP |  |  | FOSS. |
| Zope | Python |  | Really a development platform, see Plone for a full CMS on top of Zope | FOSS |
| Plone | Python/Zope |  |  | FOSS (GPL) |
| PHPCow | PHP |  |  | Commercial |
| Wikis |  |  |  |  |
| TWiki | Perl | No database required | Wiki, various plug-ins and applications | FOSS |
| MediaWiki | PHP | LAMP | This is the software that powers the Wikipedia | FOSS (GPL) |
| TikiWik | PHP | LAMP | Articles/news page, Wiki, Blogs, Forums, Ad management | Exceptionally rich "do-it-all" FOSS project |
| JSPWiki | Java | Does not require a database |  | FOSS. |
| Bulletin Boards and Communities |
| vBulletin | PHP | LAMP | Web forums package | Commercial product |
| phpBB | PHP | LAMP (can use PostgreSQL, MS SQL Server or even (!) Access) |  | FOSS. Has had some ongoing security issues |
| eve |  |  |  | "Community Engine" - forums, chat, etc. Seems to be a hosted service rather than a product. |
| Online Community Application (OCA) | Java |  | Specifically designed for alumni and similar communities | Seems to be commercial? |
| H2O Project |  |  |  | Education-oriented |
| News-Oriented |
| Slash | Perl | mod_Perl, MySQL |  | FOSS. This is the code that runs the infamous Slashdot |
| Learning Content Management Systems |
| Moodle | PHP | LAMP | Based on theory of social constructionist pedagogy. Lots of plug-ins, terrific support. | FOSS (GPL) |
| Claroline | PHP | LAMP | University of Louvain, Belgium | FOSS (GPL) |
| ATutor | PHP | LAMP | University of Toronto. IMS/SCORM compliant | FOSS (GPL) |