NotebookWiki is an online reference and education platform designed to help students, teachers, and researchers access and organize their notes, research, and other reference materials. The app offers a range of features including a notebook organizer to store and share notes, a research library which allows users to store and access thousands of online academic articles and books, and a powerful search engine to help them quickly find the information they need. It also offers a collaborative platform which allows multiple users to work on the same project and compare notes with each other. It provides a range of features to make learning easier and more efficient for users, such as flashcards, quizzes, and study cards.
Discontinued development has changed from Piggydb to Cotoami. https://piggydb.net/2017/04/04/piggydb-oinker-cotoami-we-need-your-help/