FLOSS4Edu Tools etc./LMSs etc

Learning Management Systems (etc.)

 * KEWL - link out of date - evolved into Chisimba - see for example posts on Derek Keat's blog.
 * Sakai
 * Moodle
 * ATutor
 * ACollab
 * OLS - link out of date - project status unknown
 * Fle3 - environment for progressive inquiry. See
 * Fle4 and
 * LeMill and developer site
 * SchoolTool - more of a school management system (below)
 * Merlot
 * Rhaptos (platform used by Connexions)
 * Claroline

MOOC Platforms

 * OpenMOOC
 * Open edX

Content Management Systems

 * Plone
 * Pluni - video sharing extension for Plone.
 * Drupal
 * Joomla
 * Lenya
 * OpensourceCMS
 * Kewl (click on an entry under "View Course")
 * MediaWiki - platform used by WikiEducator, Wikiversity, and many others.

School Management

 * SchoolTool
 * Fedena
 * openSIS and http://opensis.sourceforge.net/

Social Software

 * Status.net - used by identi.ca - micro-blogging.
 * Wordpress - blogging
 * Please add ...
 * Top 40 - Vivalogo's list
 * Top 40 - Vivalogo's list