You think there’s a blogosphere? As Anil points out, there are thousands:
“First, it’s important to note that there is no “blogosphere”. There are hundreds of blogospheres. Each sub-community of weblogs has its own social norms, its own traditions and its own thought leaders.”
Anil then lays out the common discoveries which include the following:

• What is blogging?
• Our community invented blogging!
• Blogging vs. Journalism
• Where are the women/minorities?
• You’ll get fired!
• Think about the children!
• The technology is boring/unimportant.
• Will blogs change the world?
• What you do isn’t blogging ? do it this way.

More here, all true.