Recently I stood corrected, when an English member of a woodworking discussion forum let me know that it's wrong to say "give a look at" in the meaning of "have/take a look at" (obviously it was the Italian expression "dare un'occhiata" - to give a look - that deceived me).

I discover now a number of occurrences of "give a look at" in Google Books. Here for instance:

Is it an obsolete expression or has it a different meaning?
The link you give doesn't yield a site. I looked up "give a look" and certainly found millions of instances, but several forms/meanings of this occur.

Can you quote your particular instance from the above link?