message: Add Google Sidewiki
diff: "description": "Google Hotpot was a local recommendation engine that allowed people to rate restaurants, hotels, etc. and share them with friends.",
  "link": "https://mashable.com/2011/04/08/google-hotpot-goes-cold/",
  "name": "Google Hotpot"
  + },
  + {
  + "dateClose": "2011-09-02",
  + "dateOpen": "2009-09-23",
  + "description": "A browser sidebar tool that allowed users to contribute information to any web page.",
  + "link": "https://en.wikipedia.org/wiki/Google_Sidewiki",
  + "name": "Google Sidewiki"
  }
  ]
  