I think these exist, they've just become more specialized. Think of these sites you might have seen before: - alternativeto.net and similar - Google Scholar /

I think these exist, they've just become more specialized. Think of these sites you might have seen before: - alternativeto.net and similar - Google Scholar / Semantic Scholar - Every sandboxed social network (Facebook, Twitter, Tumblr) - A variety of Instagram searching sites - Alternative App stores for Android And there's room for plenty more sites like this. Attempting to return a good response for anything in the search box is a bottomless problem of unclear utility. Being more focused makes the work easier and the value for the user clearer.