1. Definition
1.1. Wiki's and Open Source: Collaborative or Cooperative?
1.1.1. http://eaves.ca/2007/02/05/wikis-and-open-source-collaborative-or-cooperative/
2. Groupware
2.1. Free and opensource
2.1.1. Client-server
2.1.1.1. eGroupWare
2.1.1.1.1. http://www.egroupware.org/
2.1.1.2. Horde GroupWare
2.1.1.2.1. http://www.horde.org/groupware/
2.1.1.3. phpGroupWare
2.1.1.3.1. http://phpgroupware.org/
2.1.1.4. phpProjekt
2.1.1.4.1. http://www.phprojekt.com/
2.1.1.5. Scalix
2.1.1.5.1. http://www.scalix.com/community/index.php
2.1.1.6. Zimbra Collaboration Suite
2.1.1.6.1. http://www.zimbra.com/community/downloads.html
2.1.1.7. LibreSource
2.1.1.7.1. http://dev.libresource.org/
2.1.1.8. Citadel
2.1.1.8.1. http://www.citadel.org/doku.php
2.1.1.9. Kolab
2.1.1.9.1. http://www.kolab.org/
2.1.1.10. GroupOffice
2.1.1.10.1. http://www.group-office.com/Pricing+and+Sign+up/Server+version
2.1.1.11. Zaraffa
2.1.1.11.1. http://www.zarafa.com/index.php?q=en/content/community-0
2.1.1.12. OpenGroupware
2.1.1.12.1. http://www.opengroupware.org/en/applications/index.html
2.1.1.13. AccessGrid
2.1.1.13.1. http://www-new.mcs.anl.gov/fl/research/accessgrid/index.html
2.1.1.14. ACollab
2.1.1.14.1. http://www.atutor.ca/acollab/
2.1.1.15. OpenAtrium
2.1.1.15.1. http://openatrium.com/
2.1.2. Web-based
2.1.2.1. BaseCamp
2.1.2.1.1. http://basecamphq.com/
2.1.2.2. OpenAtrium
2.1.2.2.1. http://openatrium.com/
2.2. Proprietary solutions
2.2.1. Novell Inc.s GroupWise
2.2.2. Microsoft's Sharepoint
2.2.3. IBM Lotus Domino
2.2.4. EMC2 Documentum eRoom
2.2.4.1. http://www.emc.com/products/family/eroom-family.htm
3. Enterprise Content Management
3.1. Free and opensource
3.1.1. Client-server
3.1.1.1. Alfresco
3.1.1.1.1. http://www.alfresco.com/
3.1.1.2. DotNetNuke
3.1.1.2.1. http://www.dotnetnuke.com/
3.1.1.3. Plone
3.1.1.3.1. http://plone.org/
3.1.1.4. Archivista
3.1.1.4.1. http://www.archivista.ch/en/
3.1.1.5. OpenKM
3.1.1.5.1. http://www.openkm.com/
3.1.1.6. Nuxeo CPS
3.1.1.6.1. http://www.nuxeo.com/en/
3.1.1.7. ResourceSpace
3.1.1.7.1. http://www.montala.net/resourcespace.php
3.1.1.8. KnowledgeTree
3.1.1.8.1. http://www.knowledgetree.com/products/knowledgetree_editions_feature_matrix
3.1.1.9. Main//Pyrus DMS
3.1.1.9.1. http://www.mainpyrus.org/
3.1.1.10. Drupal
3.1.1.10.1. http://drupal.org/
3.1.2. Web-based
3.2. Proprietary solutions
3.2.1. IBM FileNet
3.2.2. EMC2 Documentum
3.2.3. Interwoven Worksite
3.2.4. Microsoft Sharepoint
3.2.5. Xerox DocuShare
3.2.6. OpenText HummingBird
3.3. Wikipedia CMS Comparison
3.3.1. http://en.wikipedia.org/wiki/Comparison_of_content_management_systems
3.3.2. http://en.wikipedia.org/wiki/Enterprise_content_management
4. Project Management
4.1. Free and opensource
4.1.1. Client-server
4.1.2. Web-based
4.1.2.1. SamProject
4.1.2.1.1. http://www.samprojectnet.com/
4.1.2.2. BaseCamp
4.1.2.2.1. http://basecamphq.com/
4.1.2.3. OpenAtrium
4.1.2.3.1. http://openatrium.com/
4.1.3. Desktop
4.2. Proprietary solutions
4.2.1. Desktop
4.2.1.1. Microsoft Project
4.2.1.2. MatchWare
4.2.1.2.1. http://www.matchware.com/
4.2.2. Web-based
5. Mind Management
5.1. Free and opensource
5.1.1. Desktop
5.1.1.1. FreeMind
5.1.1.1.1. http://freemind.sourceforge.net/wiki/index.php/Download
5.1.1.2. MyMind
5.1.1.2.1. http://www.sebastian-krauss.de/software/
5.1.2. Web-based
5.1.2.1. Mindomo
5.1.2.1.1. http://www.mindomo.com/
5.1.2.2. Mindmeister
5.1.2.2.1. http://www.mindmeister.com/
5.1.2.3. Mind42
5.1.2.3.1. http://www.mind42.com/
5.1.2.4. SpinScape
5.1.2.4.1. http://www.spinscape.com/
5.1.2.5. WiseMapping
5.1.2.5.1. http://www.wisemapping.com/
5.2. Proprietary solutions
5.2.1. Desktop
5.2.1.1. MindJet Mind Manager
5.2.1.1.1. http://www.mindjet.com/
5.2.1.2. NovaMind
5.2.1.2.1. http://www.novamind.com/
5.2.1.3. MatchWare
5.2.1.3.1. http://www.matchware.com/
5.2.1.4. Inspiration
5.2.1.4.1. http://www.inspiration.com/Inspiration
5.2.2. Web-based
5.3. Wikipedia comparison
5.3.1. http://en.wikipedia.org/wiki/List_of_mind_mapping_software
6. Bookmarks Management
6.1. Free and opensource
6.1.1. Web based
6.1.1.1. Del.icio.us
6.1.1.2. Magnolia
6.1.1.2.1. R.I.P.
6.1.1.3. BlogMarks
6.1.1.4. Diigo
6.1.1.4.1. http://www.diigo.com/
6.1.2. Client-server
6.2. Proprietary solutions
6.2.1. JameSpot
6.2.1.1. http://www.jamespot.com/