Google Knowledge adds filters and comparisons

To illustrate its new Knowledge Graph filter, Google provided an example search for impressionist artists. A black carousel now appears above the organic results showing a handful of popular artists in this category frequently mentioned on the web (e.g., Monet, Renoir, Degas, Manet). Clicking on any of these artist's pictures will generate a new search results page for that specific artist.

Now you also can use Google's new comparison tool. Right on Google you can see assorted facts compared side by side. For example, if you wanted to compare nutritional information you can ask google "butter vs oil".