Google continues to embellish its interface. This week they introduced something called 'Rich Snippets' which basically are additional search results based on metadata embedded in web pages. For the moment, they're just starting with "reviews and people".
This looks like an interesting development and you better believe I'll be looking at strategies to incorporate this in my work. That said, my first thought was how will they deal with pages that try to game the system? We have the example -- back in the day -- of keyword tags.