Several Pirate Bay-related domains become available again this month after their owner failed to renew the registration. Yesterday, Piratebay.org was sold in a Dropcatch auction for $50,000 and ThePiratebay.com will follow soon. Both domains were previously registered to the official Pirate Bay site. TorrentFreak reports: Over the years the Pirate Bay team had many ‘backup’ domains available, just in case something…