If your notes are entirely your own writing, you're probably fine. I.e. if you summarize, paraphrase, and the like, then you shouldn't have much to worry about. The fact that your notes might substitute for book itself is just the facts of life in the marketplace of intellectual ideas.
All that being said, if you copy literally from the book, you might find yourself having to deal with legal threats, DMCA takedown requests, or an actual lawsuit. None of us can (or should) tell you how that might go. You should consult an attorney before you post anything if you intend to copy liberally from the original sources. You may have a number of defenses if legal process should commence, but that doesn't help you save on attorney's fees and other costs. So be careful that all your words are your own.