The Open Knowledge Forum Network — a federation of groups that work to create open data-sets and to promote access to knowledge — has just launched Comprehensive Knowledge Archive Network. This is an exciting project, aimed at creating a single web-repository for huge sets of freely usable knowledge. They call it a "Freshmeat for open knowledge."
CKAN links in especially closely with our recent discussions of componentization: we envision a future in which open knowledge is provided in a much more componentized form (packages) so as to facilitate greater reuse and recombination similar to what occurs with software today (see the recent XTech presentation for more details). For this to occur we need to make it much easier for people to share, find, download, and 'plug into' the open knowledge packages that are produced. An essential first step in achieving this is to have a metadata registry where people can register their work and where relevant metadata (both structured and unstructured) can be gradually added over time.
Link to post about the Archive, Link to Archive