Zeldman is asking everyone to link to “Compatibility of Weblogs and ISSN” by Joe Clark. He very clearly lays out why weblogs should continue to be eligible for ISSNs and why some registrars may be denying or sitting on them. I applied for an ISSN months ago and have not yet gotten mine. Read the article. Many weblogs may be trivial, but they are a free source of information coming directly from individuals and not corporations. Having an ISSN gives an appropriate level of legitimacy.