When I met with designers of the OdysseyWare blog to determined security levels, layout and themes I mentioned (with little fanfare) using Web 2.0 as the concept for collaboration between industry and school administrators, teachers, etc. The main concern for those involved was the extreme pace the discussions could take and the lessened administrative control we would have to monitor content on the site.
After much disagreement and a return of oxygen to the room, agreement was reached to proceed with caution with regard to Wikis, Blogging, discussion boards, etc.
Although the concerns were well-placed and mirrored many mentioned in this Campus Technology article, the overall benefit of allowing the marketplace to discuss and generate ideas was a no-brainer in my mind and something we clearly needed to pursue. The market is too diverse and overflowing with ideas for any one person, brilliant or not, to monitor and counter effectively.