Defining a blog is as easy as defining a person. While one may be defined by a few primary characteristics, a person as a whole may never be completely defined as they are constantly changing and evolving. A blog is very similar.
The primary characteristics involve illustrating the people who live, work and play in rural communities, clarifying and discussing controversial topics in agriculture, providing insight into what agriculture encompasses today, among a myriad of other topics that come to mind.
So while a concrete and complete definition is unavailable, the articles will eventually flesh out a blog that does not need to be defined at all. Enjoy!