[mst]

It's simple.

For brute force 'rgrep /internet' google has the scale and the technology to be way ahead of everybody else. But when I already know roughly what I want will exist, I apply duckduckgo.com, because they're less raw processing and more intelligently automated quasi-curation.

[cwp]

Agreed. I use DDG as my default search engine, because most of the time my searches are for the form "find me the web site for X" where X is a thing in the world. I fall back to Google when DDG doesn't give me the result I need (rare, but it happens) and when I need to learn about a concept. For those amorphous "tell me about X" queries, Google is unmatched.