There seems to be a lot of confusion recently about what is spam and what isn’t spam when it comes to rich snippets and that the confusion appears to be led by Google (go figure).
PPC Rich Snippets
Rich snippets for me are user reviews. Take the hotel industry for example:
You can see I rated this 5 stars, this is based on the fact that I have eaten there many times and had Guests stay there many times as it is my preferred Hotel when having visitors are staying in Ripon.