Much later, at the same time as wanting to learn more about all this public space, to have a geographic and practical knowledge - that is by getting hold of maps and keys to use the tunnels - we realized this really was the ideal location for numerous projects.

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Knowledge Graph will show search results in a new way, integrated with maps and other data.

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But maisu also referred to easy, communal sharing of something good: like the knowledge of how to sail for weeks out on the Pacific, without maps, going by the stars.

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Likewise, status updates on mobile can add to Google's knowledge about who does what when, which can affect the sorts of buildings and businesses it identifies on Google Maps.

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