Blogs of Interest

A number of history organizations and groups now publish active and informative blogs, which often include material of interest to business and economic historians. A (far from comprehensive) sampling:
American Antiquarian Society: Past Is Present
American Historical Association: AHA Today
Centre for Imperial and Global History, Exeter: Imperial & Global Forum  
Economic History Society: The Long Run
Global Urban History
Hagley Library and Museum: Research and Collection News
Legal History Blog 
National Museum of American History, O Say Can You See? (filtered for business history)
New-York Historical Society: From the Stacks  
Organization of American Historians: Process
Organizational History Network
Society for Historians of the Early Republic (SHEAR): The Panorama
The Junto (early Americanists)
Urban History Association: The Metropole 
In addition, several individual historians manage blogs of interest:
Ed Ayers, et al., Bunk: Rewiring American History
Ken Lipartito, In the Age of Trump
Stephen Mihm blogs regularly at the Bloomberg View
Andrew Smith, The Past Speaks
John Turner, Finance: Past, Present, and Future
Robert E. Wright, Finance: History and Policy