Perhaps you've considered and rejected the proposition that there are new authors worth reading in the stacks of independently published books that come in and just as quickly get shoveled out. See http://bookcriticscircle.blogspot.com/2006/08/why-do-critics-ignore-certain-books.html
I certainly haven't rejected the proposition. But since becoming a one-man band mostly, it's hard to keep up. But The Inquirer reviewed Jane Gardam's Old Filth, which is something that might have been overlooked. I'm always trying to find off beat stuff to look at. Even if there is only limited space.