So I have been having trouble convincing developers to leave google... So heres my idea:
Create a website or demo of using DDG that gives value to developers. Such may include common cases for say Java developers, Clojure devs, Python devs, etc.
I showed a couple of cool features like: !java java.lang.String -> official String api for java. That gives wow points that makes people more likely to switch.
Other cool things I love about DDG:
!qr <url>
!gi image search <-- sure its google, but its easier to get to than from google!!!!
Even better if doing the same action is demoed side-by-side.
Gameification possibility: If you can gameify DDG to get people to use more advanced features for "points" (like !bang syntax, questions answered, etc), content discovery will become easier and will get people more engaged.