The definition of a blog is pretty simple.
From a pure mechanical or descriptive standpoint, a blog is a website, with articles (text) arranged in chronological order from newest to oldest written typically by one person (the blogger) but not always. There may be guests, or it might be a community blog written by a group of bloggers.
But that really doesn't tell you very much about what a blog really is.
Nor does it really give you a glimpse into what a blog is all about.

So what IS a blog?
A blog is...your window to the world of real estate for readers. As the writer it is your lens and perspective, your viewpoint, your ability to influence, and your opinion.
A blog is...your passion, your likes and your dislikes, your ethics, your integrity, your thoughts, your emotions, and your humor
A blog is...your opportunity to be creative, to share, to inspire, to question, to inform and educate, to change, to get the word out, and to critique
A blog is...your chance to be yourself, to be original, to speak in your voice, to say what you want, and to reflect your personality, your spirit and your soul
A blog is...your business, your community and your personal life, sometimes with blurry lines between
A blog is...a way to make friends, interact, and establish and maintain relationships (both business and personal), which can lead to real estate transactions and referrals, and to a more rewarding personal and social life
But there can be an ugly side of a blog, too

A blog is...sometimes a place to misbehave, chastise, criticize, ridicule, slander, complain, insult, embarrass, break confidences, proselytize, self-promote, steal and...you get the idea.
What is so simple really isn't so simple after all, is it?
Good Article. We learn a lot from Active Rain Blogs.