Is anybody seeing how much extra work this is going to put on the front end developer. We already have to support multiple browsers, multiple display sizes, ARIA roles, and more. I don't mind the extra work for the handicap (ARIA), but looking up and adding all this new meta information merely for search engines is going be a pain. In the end, this extra work makes it easier for the search engine by requiring the developer to do more work. I would prefer the reverse, otherwise maybe I need to get into the search business. They are creating a standard that will make it incredibly easy for future search engines.