Under the terms of the draft deal, formally submitted this week, Google will label its own specialist search services and provide "visible" links to rival search engines.

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The website Chilling Effects, a collaboration between a number of US law schools and the Electronic Frontier Foundation, publishes the notices, and is still visible via Google Search.

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Improving a search function sounds complicated, but Costa says there are many ways to do it, some as simple as making the search box highly visible.

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Full names were always visible to non-friends in search results for your name.

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And all those stories and search engine hits will make your company more visible to potential customers.

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As part of the agreement, Google will clearly separate promoted links from other web search results as well as displaying links to three specialised search rivals "close to its own services in a place that is clearly visible to users".

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Even though the sensitive information was hidden in the HTML and not visible in plain view, the Google crawler observed it and recorded the information to put into its search index.

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