Re: What is the blog area?
Blog = the main BuddyPress Admin site blog
Blogs = links / a listing of all your users’ blogs (include the admin blog)
So, if you decide not to offer blogs to your users, you can still use the main site blog (admin blog) to disperse information–just as is done here on BuddyPress.org
If you want to name the “Blog” slug something different, see this article: