Better search options (finally) form Google and RDFa

Google introduced new refinement options today that will improve how user gets additional insights from the search results and moving away presenting "dumb" search results. If they move these refinement to Google Scholar it would be great for research community. Also their adoption of microformats and RDFa is an excellent move to provide rich snippets , btw Yahoo has similar options too where we tested this with Ben Adida and Zepheira team last year. Let's see which STM publishing company will leverage the value of this (RDFa) first.