Image metadata and internet searches
I think you may be right. I know that text fields in the old web-based Apple homepage, as well as in iWeb were, in fact, searchable and were returning results to Google and Yahoo. Those were all text fields though and were not direct links to image metadata.
|Black on White by RaVN11|
|Hummingbird and Bee by dibilio57|
from A Big Year - birds
|xheneta iseni _for DPReview by Mike Slade|
from - My Fair Lady - (Portraits in Full Colours Only + A Border)