Some perceive Google's stand with hypocrisy e.g. http://twitter.com/#!/counternotions/status/3256864602692403...
Similarly, it's plagiarism if you take a Harry Potter book and publish your own version with the names changed, but James Patterson's "Witch & Wizard" has a copyright of its own despite being rather similar in concept.
(Edited to remove question about phrasing thanks to atularora's clarification.)
TripAdvisor says "Google, don't copy our reviews for Google places."
Google says "The only way we won't copy your content is if you opt-out of completely."
TA says "We can't do that, you're the only search engine there is."
Google just laughs maniacally.
http://www.tnooz.com/2010/12/08/news/google-places-blocked-f... http://www.tnooz.com/2011/01/11/news/tripadvisor-content-on-...