Best sites for non-Kindle Japanese ebooks?

[NicoleIsEnough]

You can have a look at this thread, there is a section about buying digital books:

Resources for Starting to Read Japanese Content

[Reading] This thread brings together resources and advice for helping people to get started with reading. If you know of any great tips or resources, please share them! You can also let me know if anything needs updating, like if any of the links go out of date for example. Reading Advice and Support Tools

Where to Start

Reading native Japanese content is simply hard, and you’re gonna have to prepare yourself to look up a lot of stuff if you plunge straight in - sorry! Two things…