“Jeff Jarvis’s “BuzzMachine” is the single best source for information on the global expansion of the blogosphere. University of California, Berkeley, economist Brad DeLong (“Brad DeLong’s Semi-Daily Journal”) is perhaps the most influential economics blogger, while Tyler Cowen and Alex Tabarrok comment on microeconomic theory and the globalization of culture at “Marginal Revolution.” The group weblog “Oxblog” has won serious media attention for its campaign promoting an assertive U.S. foreign policy supporting human rights and democracy.

“Blog coverage varies throughout the world. Although Salam Pax paved the way for Iraqi bloggers, he has stopped blogging himself, and only around 70 Iraqi blogs have picked up where he left off. Among the more prominent: “Iraq: The Model” and “Baghdad Burning,” which respectively support and oppose the U.S. military intervention. Western Europe has a sizeable number of blogs, especially in Britain, with the right-wing “Edge of England’s Sword” and the pro-war leftist “Harry’s Place.” “Slugger O’Toole” covers the Northern Ireland beat, while “A Fistful of Euros” seeks to provide an overview of Western European politics. Elsewhere, “BlogAfrica” syndicates blogs from across that continent, while “Living in China” offers an expatriate perspective on Chinese politics and society. Last is the blog of Japanese tech entrepreneur and venture capitalist Joi Ito (“Joi Ito’s Web”). He reportedly visits 190 blogs regularly and averages five hours a day reading and writing blogs.”