Description: Project Gutenberg is an online library containing over 60,000 free eBooks. The eBooks are available in epub, Kindle, HTML and simple text formats. The library focuses on public domain content.
Type: software
Description: Zotero is a free, open-source reference management software that helps you collect, organize, cite, and share research sources. It works as a standalone program or browser extension that seamlessly integrates with Word, LibreOffice, and Google Docs.
Type: software
Pricing: Free