Would you include your blog in your T&P file?

What's the difference between a blog and a book, as far as "publications" are concerned? It's not quality -- it is not much harder to get a book published than it is to write the equivalent material in a blog. So if you are happy to list a book in your Tenure & Promotion file, would you also include your blog?

I know of people who have done it, like our former science librarian John Dupuis (his excellent blog is here). But I expect John is the exception rather than the rule.

I see a couple of things holding most researchers back from using their blog professionally.

On False Positives

Methods

One mature Atlantic Salmon (Salmo salar) participated in the fMRI study. The salmon was approximately 18 inches long, weighed 3.8 lbs, and was not alive at the time of scanning. The task administered to the salmon involved completing an open-ended mentalizing task. The salmon was shown a series of photographs depicting individuals in social situations with a specified emotional valence. The salmon was asked to determine what emotion the individual in the photo must have been experiencing. Stimuli were presented in a block design with each photo presented for 10 seconds followed by 12 seconds of rest. A total of 15 photos were displayed. Total scan time was 5.5 minutes.

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