[raam86]

What I am wondering is how can DDG show correct PPC results with out collecting user data. They must transfer searches to bing in order to display correct adverts.

http://help.duckduckgo.com/customer/portal/articles/216405-a...

[jasonlotito]

They collect data. They do not collect personal, identifiable data.

https://duckduckgo.com/privacy