Internet Research, Uncensored

Computer scientists use social networking to help foreign scholars bypass their governments' Web filters

Tucked near the top of Jadi Mirmirani's Web browser sits a pale-blue toolbar. Amid a cockpit-like array of buttons, it is his navigation system, but it is entirely nondescript: For Internet activists and scholars in Iran — where the government bans thousands of Web sites and even keyword searches on "women" — subtlety is critical.

When Mr. Mirmirani

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