Samizdata - 2:34 pm on Oct 8, 2010 (gmt 0)
you can already view a full page preview simply by clicking on the 'cache' link
Webmasters can easily opt out of that "service" (though it should have been opt in).
if you block this feature on your site, and Google shows nothing, visitors may bypass you altogether
That is the real problem - even if you can find a way to say "no", the consequences could be severe.
The issue is not confined to Google, however, and is a general search engine trend.