A little over two months ago, I decided to apply for an ISSN for this blog. The notification letter arrived from the Library of Congress yesterday: Libology blog has an ISSN of 1946-1852. The link on the ISSN number doesn’t return a result (yet) but I recommend WorldCat’s xISSN History Visualization Tool.
There has been a debate over the use of ISSNs for blogs; my perspective is that I attempt to make this a responsible and professional ongoing commentary on library technology, sociology, etc., and as such it fits the definition of a serial. And the LOC agrees.