The problem with search is that not only is Google getting worse, but I've also mostly outgrown it, in that it isn't sophisticated to answer pretty much any scientific question I would want to ask. - No way to search for a scientific question and get a summary of the current scientific consensus or viewpoints on specific issues - It's really hard to access academic journal articles online. - Even when you can access…
One thing I search for sometimes are code examples in a particular language. Search for something in C on Google and you end up with lots of stuff for C++, C#, etc... Github, with its large repository of public code, lets you filter by programming language, and is much better than Google in these cases.
Bing copies Google. DuckDuckGo returns different things than Google, but otherwise is a copy. There's no micro search engine for specific topics and sub-topics, outside of site-specific search. Market opportunity...