Google rolls out search filter options
You can also change the view to include a timeline plotting pages based on dates contained in the web pages, or by including related search terms at the top of the page. There's also a "Wonder Wheel" option which presents you with links to related web pages in a sort of brainstorming/mindmapping format where each link leads to a new set of links.
You can find a video demo of the new search options after the break. At a Searchology event yesterday, Google also demonstrated several other upcoming features including the ability to synchronize desktop and mobile searches, and plot data from search results in charts. For example, searching for "small dogs" would return a chart showing dog breeds, sizes, and so on.