...
- "document management"
- "content management"
- calendar
- mailing lists
- workflow
- shared authentication
- integrated search
- blog
- content filtering
- RSS/news feeds (presumably)
- meetings
- agendas
- attach content
- forum
- webcast
- videoconferencing
- subscription / "notify on change"
- import/export
- Word DOC
- HTML
- XML
- Others?