If the blog does not have an author or date, you can use the “uncredited source” method. The uncredited source method states that if the information in a blog is not attributed to any specific author or date, you can use it as an uncredited source. To use the uncredited source method, you would include the following information in your citation:
(blog name) (uncredited source)
For example, if you were citing a blog called “The Daily Dot” and you found information on a website that was not attributed to any specific author or date, you would include:
The Daily Dot (2012). Website X. Retrieved from http://www.dailydot.com/politics/2012/08/ website-x/
In this example, “The Daily Dot” is the blog name and website X is the uncredited source.