It seems News International is making good on its promise to remove its newspapers from search indexes and news aggregators. Yesterday, Rupert Murdoch's The Sun Online blocked Meltwater, an online media monitoring company that notifies companies when they have been mentioned in newspapers, according to paidContent.

This move comes as the Wapping-based publications prepare to erect paywalls around their Web sites. Back in March, the Times Online also blocked Meltwater in response to the company refusing to compensate the newspaper for aggregating its content. Once again, the Murdoch-owned newspaper used the robots.txt protocol, software that prevents web crawlers from accessing a website, to block Meltwater.

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