OpenSource: Collaborative Design

After delving into the world of opensource I have found implementation is emphasised over design. Version control allows for a project to branch off in many directions, which projects may do; this suggests lack of consensus or direction amongst the participants.

What software or websites are useful for collaborative design?

Solution

There are literally hundreds more collaboration apps out there and more keep appearing by the day, but these should get you started:

Source Control (Online):

Assembla - Public source is free, private repositories are paid
Source Forge - Open source only
Google Code - Open source only
Git Hub - Public source is free, private repositories are paid

Bug Tracking/Project Management

LightHouse - Unlimited open source, paid private projects
FogBugz - Full version is free for up to two developers
BaseCamp - Paid only
Trac - Not hosted (although Assembla hosts it), open source - Python
Bugzilla - Not hosted, open source - Python
Mantis - Not hosted, open source - PHP

Mind Mapping

MindMeister - Free for small plans, with options to upgrade

Documents

Google Docs - Free
Buzzword - By Adobe - free
Scribd - Free

Graphics

Aviary - I'm not quite sure how collaborative they are, but I think you can use their tools that way
Photoshop Express - Another Adobe product
Picnik - Free

Whiteboards

Scriblink - Free with paid options
skrbl - Free for public, paid for private
Dabbleboard - Free and paid plans

Hosted Wikis

pbwiki - Paid plans
Wikidot - Free with paid plans

Miscellaneous

Acrobat - Part of Adobe's online suite
Zoho - Fits into a lot of categories