6 Sites in Polish [pl]

testerembyc.pl

by Maciej Kusz

pl

Blog about software testing (sorry but only in Polish language)

Satkas Blog

by Satkas

pl

IT, Open Source, Linux, etc

Adam Chyła

by Adam Chyła

pl

Personal blog about programming.

Cases

by Grzegorz Śliwiński

en pl

Not only about encountered programming cases.

Infrastructure and Application Security

by Pawel Krawczyk

pl

Information security, penetration testing, privacy, European Union regulations, digital and electronic signature in a healthy mix with European politics with focus on Eastern Europe - Poland, Ukraine and Russia.

/var/log/bpiotrowski

by Bartłomiej Piotrowski

Source

en pl

Journal of Arch Linux developer, primarily in Polish.