We are talking about the kind of field in which each participant is constantly surprised by hearing other projects which relate to what they are interested in, but which they didn't know about.
In this sort of field, no one person or small group can keep abreast of all of the projects and their interconnections. Because of this, a static website maintained by some organization would necessarily be greatly incomplete.
Such a website would greatly benefit from allowing visitors to add connecting links between related projects, as well as new entries for projects that the hosts don't know about.
See also: WikiNodes wiki