The MPAA (Motion Picture Association of America) has called this year's Megaupload shutdown a "massive success" according to Torrent Freak, and has named other "notorious markets" that it wants to target next.
Megaupload hosted millions of files until was taken down in January in one of the largest criminal copyright cases ever.
Hacking group Anonymous protested at the time by attacking websites for the FBI and US Justice Department.
Many other rogue sites were affected when Megaupload was taken down. Several sites which relied on affiliate revenue from Megaupload, which the MPAA claims resulted in less copyrighted material being available.
"This year's seizures of Megaupload.com and Megavideo.com by the Department of Justice illustrate the extent and impact that hosting hubs have on the online landscape," said the MPAA's Michael O'Leary.
"When these two websites were taken down, many linking websites, custom search engines, and custom streaming scripts that relied on the sites for content became inoperable. Some websites were abandoned by their operators, others lost traffic, while still others shifted their business model.
"In sum, the impact of these seizures was massive and the hub landscape is still recovering."
Other sites that are now in the MPAA's targets are Isohunt, The Pirate Bay, Demonoid and many others.
Who will ultimately win the copyright wars? Share your predictions in the comments.