The Crowdsource group has been actively following Anonymous Bulgaria leaks into Silkway Airlines, the story originally reported on trud.bg by Dilyana Gaytandzhieva. 

Silkway files from the "Silkway Full" release (Part 1 – 300MB) converted to searchable TXT files. Crowdsourcers will use these to search for specific terms and then match them to the PDF of the same name.