As a longtime proponent of Google search, about 3 years ago I first heard of duckduckgo and was immediately enchanted.
Within the first weeks, I decided to make DuckDuckGo.com my home-page and default search on all my browsers on all my computers and never looked back.
DuckDuckGo's true power comes to play with a "!BANG"
DuckDuckGo has the unique ability to provide search engine specific results. In other words, if you want google-only results, fine, just add "!g" in your search:
Want google-images? Fine, add "!gi" in your search:
Want yahoo-only results? Fine, add "!y":
Want to find alternate software for some application, say Adobe reader? Fine try "!altto":
Want to see what info TVGuide has about The Walking Dead? Fine try "!tvguide":
Want to find IMDB info for a favorite movie like The Midnight Meat Train? Fine try "!imdb":
Here is the complete list of magic "!bangs" including some very technical ones: https://duckduckgo.com/bang.html
Are you an expert in your field and want to create your own instant answer or !bang for the world to use? Go to http://duckduckhack.com
I truly recommend DuckDuckGo.com to be your all-inclusive search engine!
TechGlipse.com offers a "cheat sheet" for duckduckgo instant answers: