The Stamp Collecting Round-up
Don Schilling's long-running, in-depth blog on stamp collecting and postal operations. Schilling stays up on all the latest stamp-related news, from dozens of publications, so you don't have to. His posts (no pun intended) cover topics ranging from early stamp issues to the latest current commemoratives, and from philatelic events to new equipment being placed in service by the U.S. postal system. This blog also has great links to a host of other useful stamp collecting resources.