1 - The one between collaboration and participation behind “2.0″
1.1 - Collaborative tools are made to have people work together on common tasks. It is about team work. They are principally organized around emails and documents, detailed profiling, structured workflows (document approval or task management). They might use RSS as notifier (like Groupwise) but these are systematic task notifications, often hooked with the mailing system.
1.2 - Participative tools are made to have people socialize their ideas and activity. It is about Flow and Networked Individualism (as Lee says). They are principally organized around blogs, social networks, social bookmarks, RSS notifiers, wikis and sometimes personalized pages. They do not manage documents as they play with webpages. They use RSS to favor social awareness, not task notifications. They are user or topic centric

