LC Commnets, section 3.0, editorial

"""Note: The Web Architecture does not require a formal definition of 
the commonly used phrase "on the Web." Informally, a resource is "on 
the Web" when it has a URI and an agent can use the URI to retrieve a 
representation of it using network protocols (given appropriate access 
privileges, network connectivity, etc.)."""

Given that Web Arch doesn't require it, I would recommend not including 
even an informal definition. Especially as it seems wrong, e.g., such 
that tel:+1-816-555-1212 and any URN identified resources aren't on the 
web (though they are possible subjects and objects (and I guess 
predicates; URNs certainly) of RDF assertions). Is there a relation 
between being "on the Web" and being, er, part of the "information 
space" that is the web?

So, I think this note is strike worthy.

Cheers,
Bijan Parsia.