What about a curated search engine? Allow anyone to curate the results and define a custom list of allowed URLs. Then, others can use their list. For example,

What about a curated search engine? Allow anyone to curate the results and define a custom list of allowed URLs. Then, others can use their list. For example, I decide Google is terrible when I'm searching for product reviews, and all I get are results to Amazon referral websites and spam blogs that never owned the products to begin with. So, I find 200 sites or forums that actually have quality reviews and I create a whitelist of those URLs, and I name it "John Doe's product reviews list". Other people visit the search engine and they can see my list, favorite it, and apply it to their results. I maintain the list, so they continue to get updates as it's refined. The idea is you visit the search engine, type your query, then select from a drop down one of your favorite curated lists to apply. Maybe you like to use "Mike's favorite free stock photo websites" when searching for free photos for your projects. Maybe you like to apply "Jane's vegan friendly results" when searching recipes or face creams. Maybe you want to buy local, so you use the "Handmade in X" list when searching for your next belt. Maybe you use a list that only shows results from forums, or another for tracking/ad free websites. Keep track of list changes. So, if someone gets paid off to allow certain sites on their popular list, others can easily fork a past version of the list.