SMWCon Spring 2014/SMW stories, real and imagined, from at least three geoscience wikis

The geoscience community — and I'm really just talking about applied/industrial geology and geophysics — suddenly has three public wikis, not including Wikipedia: AAPG Wiki, SEG Wiki, and SubSurfWiki. This is probably unsustainable, but for now we have the chance to build some great content and a passionate user community... and some awesome repositories of semantic data. Besides these public wikis, there are various corporate, proprietary wikis with deep geoscience content.

I will share some of the applications of SMW I've been experimenting with, and plan to experiment with. These include:
 * Unit conversion.
 * Catalogs of courses, books, and such.
 * Museum-like catalogs of artifacts, biographies, and so on.
 * Atlases of geological entities, e.g. rocks, outcrops, etc.
 * User metadata.

Some of the themes and functionality I'm most interested in and/or looking for help with:
 * Updating properties from the web, e.g. to update currency conversion factors in near-real-time.
 * Semantic Interwikis, e.g. querying properties across wikis.
 * Spatial data beyond mere points, e.g. lines and polygons.
 * Storing data about data, e.g. uncertainty ranges or citations.

Caveat lector: I expect and intend to get more out of my contribution than anyone else does.

Pre-conference feedback is most welcome — if there's anything in particular I should be focusing on.