What newspapers should do, we’ve maintained, is to band together and become their own Google. It would involve blocking Google and other search engines from their Web sites, which Google says they could do legally and technically. The papers would offer their own search engine and keep for themselves all of the ad revenue that Google now gets from using their content. It’s unlikely that a subscription-based Web site, which is what News Corp chief Rupert Murdoch has proposed, would succeed. His threats increased after the company reported a record $203 million loss for the second quarter. News Corp’s Wall Street Journal already charges non-subscribers to access the paper’s online content. And wouldn’t Microsoft love to furnish a private label…