First, I appreciate the response and even the existence of this
discussion.
> The key given to you by Google is not bound by domain but by account
I had forgotten this, thanks. But a key-domain pair restriction is at
least possible.
> (From Terms and Conditions):
> The Google SOAP Search API service is made available to you for
> your personal, non-commercial use only (at home or at work).
Fair enough. For me, this is implied by the service being in 'beta'
also.
> I would be rather skeptical to add further restrictions to the API,
> most likely this will solve one problem and introduce five others.
Perhaps, or perhaps not. At least existing applications would not
necessarily be affected.
> To give you an example: the huge demand for keyword
> specific ranking information has led to heavy use for the
> SOAP API because there is no other legitimate way to
> get this information. No surprise, this brought up
> demands for more than 1000 queries per day or for
> results to mirror the ones from the browser ...
This is precisely what I would expect to mitigate through a
single-domain limitation.
No data useful to determining page rank would be returned in the
context a 'site:' filter, so you may even have a decrease in these
demands.
I am fairly certain that that a 'site:' limitation represents a
positive middle ground for the future of this service.
Is there downside that I am missing?