The CSE gives no official specific information regarding the bibliographic citation of blogs. Most entities treat them as an electronic publication/web site hybrid. As such, citations from a blog should include some or all of the following elements:
Author last name first/middle initials. Blog publication date. Title of blog entry. Title of blog [Internet]. Publication City(State initials): Publisher name. [citation date]. Available from: URL.
Lunde, A. 2010 Jan 30. You can make a difference in Alzheimer’s diagnosis, services. Alzheimer’s Blog [Internet]. Rochester [MN]: MayoClinic.com. [cited 2010 Jan 31]. Available from: http://www.mayoclinic.com/health/alzheimersdiagnosis/MY01171