What are some alternatives?
When comparing Amazon Kindle and Flipboard, you can also consider the following products
FBReader - FBReader is an e-book reader for various platforms. Features:
Feedly - The content you need to accelerate your research, marketing, and sales.
calibre - Ebook manager, viewer & converter
Inoreader - Dive into your favorite content. The content reader for power users who want to save time.
Cool Reader - Fast and small cross-platform eBook reader for desktops and handheld devices
NewsBlur - NewsBlur is a personal news reader that brings people together to talk about the world.