From Brett Terpstra:
If you don’t already have the scoop, it’s the search engine that can serve as a complete replacement for Google (and Bing and whatever else you like), except it respects your privacy and security. And while Google does some cool tricks, DuckDuckGo does some even better ones.
I’ve tried switching to DuckDuckGo a couple of times and always ended up going back to Google. Maybe I’ll try it again and these tips — particularly the “bang” searches — will help me stick with it.