Sometimes when you're searching, you're not just looking for one specific result, you may be looking for a list to start a series of searches. "Starting today, for many of your list seeking searches, you'll see a collection of the top referenced items from the topic of your search," Google revealed.
"For example, if you search for [greek philosophers], many search results mention well known philosophers like Plato or Aristotle. If you click one of these links, the collection of links moves to the top of the results page, and results for the philosopher you clicked are shown below. Since the top references block stays anchored on top of your search results, it's easy to explore and learn about each of the philosophers," Google explained.
Google explains "To better understand and answer your searches for a list, we use a variety of signals to assess what the web collectively thinks are the most significant items associated with your search keywords. Since Plato is discussed so frequently in pages about Greek philosophers, our algorithms can infer that he's an important Greek philosopher. Much of this work is based on common search patterns and Google Squared technology which we introduced into Google Labs in June 2009."
"Sometimes, a list of related searches is helpful even if you don't ask for the list directly. If you search for [van gogh], you may also be interested in learning more about his paintings. For many searches for artists, you can now see a list of famous paintings at the bottom of the search results page," Google said.
[Source: Inside Search]