Using blogs as a resource can be a great source of up-to-date information on a topic. While there are many useful blogs for academic use, many others are not written to be used as a scholarly source or are simply inaccurate. Some blogs are edited by an organization or news company, others have no editorial review and are written by an amateur - both could be used, you just need to evaluate.
Questions to ask while evaluating a blog are:
Who is the blogger?
Has the blogger been published elsewhere?
If the blogger is not a traditional “expert,” is this a first-hand view that would also be valuable for research? Is it a unique perspective?
How sound is it?
What is the focus?
What sorts of materials is the blogger reading or citing?
Is the site up front about its bias?
Does it recognize/discuss other points of view?
Is there a substantial archive?
How current are the posts?
At what point in a story’s lifetime did a post appear? Examining a story’s date may offer clues as to the reliability of a blog entry.