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PageRank stopped working when black hat SEO figured out how to game it.

They had to evolve PageRank (into things like hubs and authorities, etc..) to maintain quality.

If you think their results are bad, try a rudimentary search query on the raw data from one of the open web index projects.

Google sucks in a lot of ways but they're still really really good at search.

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Yeah, I too often think that Google search quality is decreasing. But I am not sure anyone can do better given current tech, because search engine metrics are almost always gamed.

There are some limited solutions. If they allow to filter out pages full of tracking and ads, it will filter out lot of shit content, but that probably harms their business model. They might have allowed to exclude some sites from search, too..

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