Are you an author looking for a book blogger or reviewer for your book? It's not super hard to find the lists but I know sifting through them to find good ones can be a pain. Below are a few sites that I think are worth it.
I've been reviewing books for awhile now. When I look back on some of my first reviews and compare them to now, I have noticed a big difference in the content of the reviews. The quality of my reviews has definitely improved as well. As opposed to the past, I now regularly use a thesaurus to write my reviews. I edit them multiple times and do my best to avoid spoilers. (Which is really a lot harder than you would think).
I've witnessed a lot of sour grapes as well. Some reviewers will review books from genres they know they don't like and give it a crappy rating. This grinds my gears. In my mind, these type of reviews are a waste of everyone's time. The perspective consumer and the author. Neither can use that review for anything constructive.