Moscow lawyer Aleksei N. Navalny runs a website that dishes the dirt on questionable business practices of Russian energy companies. “A 34-year-old real estate lawyer by training, Mr. Navalny can reach as many as a million unique visitors in a day with his digital samizdat, as happened last fall with his scoop about embezzlement at Transneft, a state-run pipeline company. That scheme, presented as a cautionary tale for those tempted to invest in Russian energy stocks, described executives setting up a series of shell companies to pose as contractors for Transneft’s project to build a 3,000-mile pipeline to China.”