Google is also making it easier for people to flag offensive or inaccurate content that appears in Autocomplete and Featured Snippets - the block of information at the top of search results for certain queries, which was the subject of some controversy in March.
It added: "As part of that process, we have evaluators - real people who assess the quality of Google's search results - give us feedback on our experiments".
Google is changing the way its core search engine works to help stop the spread of fake news and hate speech. (One recent report showed that Google autocomplete was being gamed by the right wing.) This feedback is expected to help Google's algorithms return higher-quality results.
The technology giant has revealed algorithm changes to improve the quality of ranking in search results. The news of the prominence of Holocaust denial in Google searches was first revealed by the Observer.
Those results can trigger a public-relations backlash, as it did in December when a white supremacist site was featured prominently in search results about the Holocaust. Google tweaked autocomplete suggestions previous year, shortly after it became aware of the problem so things like this wouldn't happen.
Google is retooling its powerful search engine to prevent sites peddling fake news, hoaxes and conspiracy theories from appearing in its top results, the Wall Street Journal reports.
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"This can sometimes lead to results that are unexpected, inaccurate or offensive", Gomes said the new system enables users to "inform us directly if you find sensitive or unhelpful content".
In particular, he said, many groups and organisations were using "fake news" to help spread "blatantly misleading, low quality, offensive or downright false information".
Questions are bound to be raised about whether this panel, which Google says is representative of its users, is impartial and objective. The main takeaway is the change in the ranking system.
Google also promised to open up over how it makes such decisions in the future, although there remained criticism over its lack of transparency.
What Google's feedback will look like for autosuggested searches. According to the search engine optimizing service MozCast, now about 15 per cent of Google searches return a result including a featured snippet, which on Google.com just looks like a text box - one of many results - off to the right side. "Some of the changes are already visible in terms of better results". Google says its new approach isn't meant to placate advertisers.