Christof Schöch has published "Fast and Made to Last: Academic Blogs Look to Ensure Long-Term Accessibility and Stability of Content" in Impact of Social Sciences.
Here's an excerpt:
The advantage of blogs compared with such talks is that here, discussions can happen across geographical and temporal borders, and that they stay visible online in comments or companion posts. But aren't blog posts, ultimately, almost as fleeting as a talk at a workshop? Who makes sure the content stays online not just today and tomorrow, but in the long term? Who guarantees that the link to the post remains the same? Who ensures that the text will not be modified later on? These are issues that need to be resolved if blogs are to be reliable, trusted, citeable resources and receive academic recognition even in the absence of traditional pre-publication peer-review. . . . The research blogging platform hypotheses.org has understood this early on. This fact is undoubtedly a factor in the success of the platform, which is run by the French initiative OpenEdition and currently hosts 1006 (and counting) research blogs in French, Spanish, Portuguese, German and English coming from the Humanities and Social Sciences.