The next most popular sites were Microsoft's portfolio and eBay, with 26.8 and 22 million visitors respectively.
The largest rise in viewing was on the BSkyB website following a nationwide advertising campaign.
Overall web traffic on the top 20 sites rose by around five per cent, but social networking sites showed much higher growth.
New teenage community site Tagged showed extraordinary growth at 226 percent, and established community Facebook was up nearly 40 percent.
The figures are based solely on home and corporate users and exclude internet cafés and mobile devices.
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