How about something that's used on
h2g2 (The official hitchhikers site), the article is submitted and is immediatly posted on the site but is not approved until an editor has glanced over it and (maybe) suggested corrections.
People could then search the official entries or the whole site. The advantage is that if an editor is away for a week, we don't have to wait for a week+ before the information is on the site.
Also could we have a list of requested topics/questions requireing answers so that if the main person is not availible then someone else could agree to pick up the topic. Obviously, you'd need to have someway to ensure that the person answering has the required knowledge etc.
Finally (and again back to h2g2) are we going to have a list of people who are allowed to post articles ? i.e. each person who wants to write articles for the site has a login to allow them to post to the specific area's that they have said the know about.
That said, you could put me down for billing systems and debt escalation. (but not the NTL billing system specifically, billing systems generally)