Discover From This Page & Topic: [Discover] collaboration
[Discover] PHP Knowledge Base System Using PHP, MySQL, and Smarty Templates - Lore | pure software http://puresw.com/products/lore/
(social collaboration php base) 
[Discover] Beanstalk — Version Control with a Human Face http://beanstalkapp.com/ (subversion svn hosting project)
[Discover] Get Satisfaction - People-Powered Customer Service http://getsatisfaction.com/ (service support collaboration tools)
[Discover] ACCORD5 | Trellis Desk http://www.accord5.com/trellis (helpdesk php free collaboration)
[Discover] Open Source Edition Downloads: Enterprise Messaging and Collaboration Software by Zimbra http://www.zimbra.com/community/downloads.html (server zimbra webmail collaboration)
[Discover] Confluence - Enterprise Wiki Software http://www.atlassian.com/software/confluence/ (collaboration wiki enterprise tools)
[Discover] Simplebucket | Real Simple Photo Hosting and Share Photos instantly for free http://simplebucket.com/ (images free photo hosting)
[Discover] The Collab Map: See Where The Collaborators Are - CollabFinder http://collabfinder.com/map/ (collaboration)
[Discover] Contact Manager, Web Based CRM, Address Book for Small Business: Highrise http://www.highrisehq.com/ (crm collaboration business contacts)
[Discover] Nopaste http://rafb.net/paste/ (collaboration code tools debug)