Group-edited community weblogs

Just thinking aloud here- what would be the value of a community or team or group-edited weblog? My first thought for the team weblog is that it can be an added value in the team tools set to deliver - the weblog can be a diary-ish tool in the set - and for a community ? I have seen community pages and sites with news- thoughts and stories dumps which may be even regarded as blogs, but they were mainly edited and maintained by the coordinator slash technical contact.

It would be perhaps interesting, to see whether or not the community can benefit on a collaborative basis from the weblog concept (rather than the individual, see my previous post). I guess that my thinking aloud reverts my comment in CP Square on the fact that weblogs as far the community itself (not the individual) is concerned, are too far off.

Do co-edited weblogs exist, anyway?