I want to implement support for Google Rich Snippets to show author info and fivestar ratings in Google's search engine results pages. I also want to be able to support Facebook's Open Graph to have Facebook pick the correct image when a node with an image is "liked" or embedded on Facebook.
The schema.org module doesn't seem to support fivestar ratings. Microdata is relatively new and I'm a bit confused about the RDFX module.
Does anyone have experience with this?