Apache Cassandra Documentation
Unknown
Free official guide, frequently recommended
More resources on NoSQL Databases
MongoDB for Developers
Learn MongoDB from the experts! This course covers NoSQL database development, taught by the MongoDB Team.
MongoDB Documentation
Official free docs, top rec in practitioner threads
MongoDB for Developers
Learn MongoDB fundamentals with this free course from the MongoDB Team. Master NoSQL database concepts and start building modern applications.
MongoDB Podcast
The MongoDB Podcast features guest interviews including developers, startups, and founders with MongoDB Principal Developer Advocate Michael Lynn. Learn about new and emerging technology, how to use the various MongoDB products and best practices, how organizations are using MongoDB, and what lead them to choose MongoDB over other databases.
mongodb.com
MongoDB's official site provides documentation, tutorials, and learning resources for MongoDB, a leading NoSQL database. Explore driver guides, API references, product information, case studies, and community resources to learn, implement, and deploy MongoDB.
couchbase.com
Couchbase.com is the official site for the Couchbase NoSQL database platform. It offers product information, downloads, pricing, and enterprise solutions, plus extensive developer resources, documentation, tutorials, and blogs.