The following online publications often publish materials discussing copyright trolls. I started to compile links to those articles. There are many more posts related to copyright issues in general, so I encourage you to follow these sites daily: it will help you to stay informed about the issues resulted from the collision of technology and law.
Also don’t just read articles themselves, take your time and read discussions, you will find many insightful comments and opinions.
Please be patient while I collect and publish the links. The lists are in reverse chronological order, so they will grow from both top and bottom: I will try to publish most current articles at least weekly, and and add older links to the bottom whenever I have time