Blog: The word "blog" is literally shorthand for "boring;" a vulgar, overused word that strikes your ear with the dull thud of a cudgel to the soft spot of a child. It's an abbreviation used by journalism drop outs to give legitimacy to their shallow opinions and amateur photography that seems to be permanently stuck in first draft hell. Looking in the archives of the blogs, one would expect someone who has been at it for years to slowly hone their craft and improve their writing and photographs, since it's usually safe to assume that if someone does something long enough, he or she will eventually not suck at it. Even with lowered expectations, you'll get a shotgun blast of disappointment in your face.
Blogosphere: The "blogosphere" is the new buzz word that has replaced "information super highway." It's what idiots like to call a collection of "blogs," otherwise known as a tragedy.