An oldie but a goodie.  The importance of 'cool URIs' that don't change might be self-evident, but that doesn't mean it's understood by everyone in a cultural heritage institution.  Help us make the case for them here.

More interestingly, what happens if there's more than one URI for a single object? e.g. one in a museum in collection catalogue and a sector-wide list?

How do we get around the fact that museums can change their name, either through re-branding or structural change? And what happens when an object is deaccessioned, or content is created around a loaned object?

What other questions should we be asking?