Russian social networking site Vkontakte (VK) is back in court, embroiled in its second lawsuit over alleged copyright infringement from Sony, Universal and Warner.

The website allows users to upload music and videos, but hasn't yet signed any licensing deals with rights holders.

In October last year, it won a court case against local music label Soyuz. The judge ruled that VK was not responsible for the uploading of over 60 tracks, to which Soyuz has the rights, by ...