I found this page via a Google search:
http://hints.macworld.com/article.php?story=20050222062346277
The content that appeared in Google's search results is cloaked, and there's a message that says I need to answer a survey question, or share the page on a social site, to view the content.
The "Answer a Question to continue reading this page" widget has a "Powered by Google" stamp on it.
Is Google allowing sites to have cloaked content if they use its widget?