In 2021, a series of popular blog posts explored various technical topics related to Couchbase and database management. The fifth most-read post, by Denis Rosa, discussed implementing distributed multi-document ACID transactions in Couchbase, addressing challenges faced by NoSQL and NewSQL databases. The fourth, authored by Jake Rawsthorne and Jagadesh Munta, provided a guide to building observability dashboards using Prometheus, Grafana, and Couchbase. Eric Bishard's post on JSON data modeling was the third most popular, offering best practices for document databases. The second spot was held by Jeff Morris, who highlighted the utility of NoSQL JSON databases, emphasizing their flexibility and performance. The most popular post, by Marian Paul, examined microservices architecture in Couchbase, focusing on data management aspects to ensure low latency, resilience, and scalability. The series promised more engaging content in the coming year.