like I said in
this thread , if what google (cache) or archive.org, etc does is LEGAL, then it should also be legal for any of us to do the same and build sites based on spidered and "archived" content.
In fact, google even makes an effort to identify links with mature content for the mature content filter (so they couldn't claim they had no knowledge that it was there.. right?).
I would think that the easy answer would be either the law will need to change or those services will need to be shut down....