“ This takes the social context stuff that Google has been doing in Reader and blows it clean out of the water. As the uberVU blog notes, “context” about and reactions to blog posts happen all over the web. It’s helpful to know that a particular friend of yours likes a post (and Google Reader lets you know that), but wouldn’t you like to know how many other people liked it too? Or how many people bookmarked or tweeted it? ”