Producer-Network Records
Polarity (3)'s label for Drum & Bass (also Dubstep and some Techno) was an integral part of the pioneering first wave of digital Drum & Bass labels, one of the flagships. It was based on a producers' online discussion community of the same name, featuring inhouse artists. When the label was defunct the releases were pulled from shops and generously made available for download on the label website.
Contact:probably best to chat up its boss on the social networks