DuckDuckGo and Perl
Torsten Raudssus will give a talk at YAPC::NA 2012 described as:
Talk about DuckDuckGo and Perl. The application and infrastructure of DuckDuckGo and about the Open Source and GreyPAN movement. Also giving an overview how to contribute to DuckDuckGo. Good for beginners to dive into Perl and contribute to a real world service directly.
[From the YAPC::NA Blog.]