They have dealt with some of these core metadata issues for spatial information. There is also an online copy of a discussion paper presenting a conceptual modeal for this high-level metadata framework. Database Query and Map Generation via the Web From Michigan State University. Problems in mapping are reviewed and options for resolutions are suggested. Lists a high-level set of elements.
Hits list out wais-indexed metadata records in outline form.
Mostly a compilation of e-mail references to sites dealing with spatial geographic searching. Contains lots of links to geospatial metadata information and sites. Many of the included e-mail messages contain annotations. There is also a link to an info page on underlying technology.