The company on Friday said it is now receiving more than a million copyright notices related to its search engine per week.

WSJ: Google to Penalize Websites Flagged by Copyright Holders

The website Chilling Effects, a collaboration between a number of US law schools and the Electronic Frontier Foundation, publishes the notices, and is still visible via Google Search.

BBC: Film studios request removal of takedown notices

"It would only take one skilled coder to index the URLs from the DMCA notices in order to create one of the largest pirate search engines available, " wrote Torrent Freak editor Ernesto Van Der Sar on the site.

BBC: Film studios request removal of takedown notices

The IRS is supposed to send the lien notices to the taxpayer's last known address and if notices are returned as undeliverable, IRS employees are supposed to search within five days for new taxpayer addresses.

FORBES: Dealing With The IRS

In a post Friday on Google's blog, Amit Singhal, a top search executive, said Google's Web "search algorithms, " which determine how websites are ranked in search results, would now take into account the number of valid copyright removal notices that Google receives for a particular site.

WSJ: Google to Penalize Websites Flagged by Copyright Holders

The notices are requests for individual web addresses to be removed from Google's search engine results because they contain material uploaded without the permission of the copyright holders.

BBC: Film studios request removal of takedown notices