l- time spent participating, salaries
- training for roles

Activities
- expenses for meetings
(f2f, e- or phone-conferences, etc.)

Technology
- enabling infrastructure
(forums, workspaces, etc.)

Content
- producing, publishing, maintaining
(newsletter, library, DB, summaries, etc.)

 

[adapted from: Fontaine, M.A. & Millen D. R., 2002]