search utility that allowed people to ask and answer questions within their social networks. It used people's claimed expertise to match 'askers' with good 'answerers'. Discontinued on September 30. Google PowerMeter – view building energy consumption. Discontinued on September 16. Desktop – desktop search application that indexed emails, documents, music, photos, chats, Web history and other files. Discontinued on September 14. Google Fast Flip – online news aggregator. Discontinued September 6. Google Pack – application suite. Discontinued on September 2. Google Directory – collection of links arranged into hierarchical subcategories. The links and their categorization were from the Open Directory Project, sorted using PageRank. Discontinued on July 20. Google Blog Search – weblog search engine. Discontinued in July. Google Labs – test and demonstrate new Google products. Discontinued in July. Image Swirl – an enhancement for an image-search tool in Google Labs. It was built on top of image search by grouping images with similar visual and semantic qualities. Shut down in July due to discontinuation of Google Labs. Google Sets – generates a list of items when users enter a few examples. For example, entering "Green, Purple, Red" emits the list "Green, Purple, Red, Blue, Black, White, Yellow, Orange, Brown". Discontinued mid-year. Directory – navigation directory, specifically for Chinese users. Hotpot – local recommendation engine that allowed people to rate restaurants, hotels etc. and share them with friends. Moved to Google Places service in April 2011. Real Estate – place real estate listings in Google Maps. Discontinued February 10. 2010 Google Base – submission database that enabled content owners to submit content, have it hosted and made searchable. Information was organized using attributes. Discontinued on December 17, replaced with Google Shopping APIs. GOOG-411 (also known as Voice Local Search) – directory assistance service. Discontinued on November 12. Google SearchWiki – annotate and re-order search results. Discontinued March 3, replaced by Google Stars. Marratech e-Meeting – web conferencing software, used internally by Google's employees. Discontinued on February 19. Living Stories – collaboration with The New York Times and The Washington Post for presenting news. Discontinued in February 2010. 2009 Audio Ads – radio advertising program for US businesses. Discontinued on February 12. Catalogs – search engine for over 6,600 print catalogs, acquired through optical character recognition. Discontinued in January. Dodgeball – social networking service. Users could text their location to the service, which would then notify them of nearby people