Rich Snippets stopped showing up in SERPS

[casper434]

Up until a few weeks ago my testimonial review ratings (5 star rating system) were showing up in search results but they no longer do. Went to the google rich snippet testing tool and they still do there just not on the real search results. Any thoughts on why? Perhaps an algorithm change?

[AlanMosley]

i have had the same thing happen to some of my sites, google does not garentee to show them, it may be that they dont believe them, or simply that too many people have them.