4 FourFour Two is a Japanese magazine that offers an online guide to all things Japanese online.
They also run a blog that provides regular updates on Japanese-language media.
Their new book, The Complete Guide to Japanese Online Books, covers all aspects of Japanese book review websites, including how to read reviews and how to find them.
I took a look at this guide and the first few chapters.
What follows is my review.
How to Read Japanese Online Book Reviews