GOOGLE will allow publishers to set a daily limit on the number of articles readers can view for free through the internet giants search engine. The change, which will let publishers limit readers to five free articles a day, comes as news executives step up their war of words against Google, which they claim is pocketing advertising profits obtained on the back of their free content. Critics include News Corporation chairman and chief executive Rupert Murdoch, who has complained about large-scale aggre-gators such as Google News that pull together stories and links to news from a variety of sources. These aggregators, say critics, get advertising revenue from using other peoples material without compensating the news organisations that produce the news stories. Mr Murdoch, who spoke yesterday at a US Federal Trade Commission workshop on the future of journalism in the internet age, has threatened to block Google from displaying News Corporations news articles, and has held talks with Microsoft about giving its Bing search engine exclusive access to some or all of News Corporations news content. News Corporation is the publisher of The Wall Street Journal and The Australian. The Journal already charges subscription fees for access to some of its online content. Google and other web companies claim they help the news organisations by sending web users to their sites. Google says news groups are free to block Google from indexing their sites and displaying their content. Googles first click free program allows Google News or Google search users to find and read articles, even if they are behind a subscription paywall. The readers first click to the content is free, but when they click on additional links, the publisher can show a payment or registration request. Users have found they can read an unlimited number of subscription-only articles as long as they keep using Google. The changes announced yesterday will let publishers limit users to no more than five pages a day without registering or subscribing to a pay service. The Australian