I have just added seven librarian-generated book review websites to the Librarian's Book Revoogle. If you have not heard, the revoogle lets you search for book reviews written by librarians or posted on library websites.
A Fuse #8 Production - children's book reviews and news
Biblio File - many children and YA reviews, some adult reviews
Bluestalking Reader - book reviews, news, and author interviews from a library program coordinator
It's All About the Book - lots of YA fiction, some adult reviews
Mostly NF Blog - from Pierce County Library System, Washington
Seven Impossible Things Before Breakfast - children's books, poetry, interviews with authors
Tillabooks - emphasis on science fiction and fantasy
As I have said before, please send me any new library book review suggestions. I try to add as many as I can. I have added all but one so far. The one library website I left out assigned URLs for its webpages by numbers with no hierarchy, not allowing me to limit to just book reviews. Because that library had a lot of other content, its inclusion would have lessen the reliability of the searches.