Rupert Murdoch has threatened to block search engines indexing content on his corporation's news websites.
Rupert Murdoch has said that his company, News Corp, could prevent Google and other search engines from indexing its news content in order to get surfers to pay for the content.
In an interview with Sky News Australia, Murdoch said that his company could put technical measures in place to stop content being indexed by news aggregation services such as Google News.
Murdoch named Google, Microsoft and Ask.com as companies who "steal our [News Corp's] stories".
Google has previously been critical of Murdoch's plans to charge for content.
Google argued that surfers would simply go to different sites to get their news fix rather than pay to access News Corp's newspaper sites, which include The Sun and The Times.
Murdoch, as well as the editor of the Wall Street Journal, another of News Corp's sites, have accused Google and other news aggregators such as NewsNow.co.uk of being "parasites" for indexing its news stories.
The Wall Street Journal already charges for access, though visitors to the site can see the first paragraph of the site before being prompted to sign up.