Has anyone developed any Exhibit projects that use Json-LD or a similar convention to make their presentations part of the fantastic world of Linked Data? If you know of any, could you provide links to examples? And if you've put together an LD-compliant Exhibit project, do you know of any tips, issues, or best practices that one should be aware of? (And if there's a difference between Exhibit 2 and 3 on this front, that would be good to know as well.)