The bookselling world both is and isn't that big. There are lots of us out there and we cover a lot of bases. Yet, at the same time, it can easily(and happily) become a game of 6 degrees of Kevin Bacon.
In the world of book blogs there are dozens upon dozens I could recommend. Doing different things, taking different angles, talking in ways that are humorous, serious and both at the same time.
One I return to, again and again, is the blog run by Daniel at Boswell and Books
He covers so much territory in a way that is refreshingly honest and real.