Scrivers Metabolic and Molecular Bases of Inherited Disease has a blog.

http://books.mcgraw-hill.com/medical/ommbid/blog/index.php
The blog is intended to create discussion that leads to a better understanding of the diseases of human mutation.

UCHC users may also access OMMBID as part of the libraries subscription to : AccessMedicine
http://www.accessmedicine.com/home.aspx

The Online Metabolic and Molecular Bases of Inherited Disease (OMMBID) is a vital digital resource for all researchers, scientists, and clinicians involved with the causation and treatment of inherited disease.