It appears the US government is attempting to do something about piracy. Limewire being shut down in October appears to have been only the beginning. At least in the US.
The seizures came after a Senate committee unanimously approved a controversial proposal earlier this month that would allow the government to pull the plug on Web sites accused of aiding piracy. The Combating Online Infringement and Counterfeits Act (COICA) allows a Web site's domain to be seized if it "has no demonstrable, commercially significant purpose or use other than" offering or providing access to unauthorized copies of copyrighted works.
"My domain has been seized without any previous complaint or notice from any court!" quoted from the owner of torrent finder.