Slate has an article on the world's oldest businesses and why so many of them are in Japan.
At the "History of Economics Playground," Beatrice Cherrier has an interesting post on the development of the JEL codes.
Congratulations to Bernardo Batiz-Lazo of Bangor Business School, whose co-authored (with Tobias Karlsson and Björn Thodenius) paper, "“The Origins of the Cashless Society: Cash Dispensers, Direct-to-Account Payments and the Development of On-Line Real Time Networks, C. 1965-1985,” was a co-winner of the Soltow Award for the best paper published in Essays in Business and Economic History, the journal of the Economic and Business History Society. The paper is freely available here.
A research group founded at the University of Portsmouth, "Port Towns and Urban Cultures," is developing an extensive resource list on the topic.
Those doing research in the early modern period may find a project of Northeastern University, the Early Caribbean Digital Archive of interest; the collection is allied with the larger Digital Library of the Caribbean consortium.
And yet more on Thomas Piketty:
--from The Guardian--a discussion of the reasons for the book's success by economists: "Why Is Thomas Piketty's 700-Page Book a Bestseller?"
--an audio interview with Piketty on Econtalk
Several on-line exhibitions from the Osher Map Library at the University of Southern Maine contain material of possible interest to business historians. See, for example, "Triumph of the Passenger Ship," "The Grand Tour and the Development of Tourism," and "Road Maps: The American Way."