There are several reasons why it's a good time to learn MongoDB, including its matured technology with industry validation, growing demand for skills in this area, and increasing resources available for learning and development. The database has been gaining traction since 2010, with its adoption continuing to grow, making it an invaluable resource for companies looking to innovate in cloud, mobile, social, and other areas. With many top companies using MongoDB, including eBay, Disney, Carfax, Edmunds, and Cisco, and some even committing to prototype all new projects on the database, learning MongoDB can position you to lead a new project or oversee a large database migration, and stay up-to-speed on new technologies. Additionally, there are numerous online education courses, training programs, webinars, and conferences available for learning MongoDB, making it easier than ever to get started with this technology.