Keeping up with the world of React and React Native requires access to reliable sources of news, updates, and announcements. This compilation provides a list of top online communities, including blogs, newsletters, podcasts, social media groups, and more, for developers to stay informed about the latest developments in React and React Native. The list includes active communities such as React Blog, Brainhub, DZone Mobile Zone, ReadWrite, Upmostly, CSS-Tricks, SitePoint, Scotch.io, Free Code Camp, Dan Abramov, Creative Tim's Blog, Remy Sharp, 2ality by Dr. Axel Rauschmayer, C# Corner, James Longster, The JavaScript Playground by Jack Franklin, Survive JS by Juho Vepsäläinen, Ben McCormick, Dave Ceddia, David Walsh Blog, Alligator.io, Kent C. Dodds, Randy Coulman, Firehose Project, Robin Wieruch, Gosha Arinich, React Armory, Mark's Dev Blog, Lucy Bain, Max Stoiber's Blog, CronJ Blog, Christoph Michel, SunlightMedia, Facebook's React Native Blog, React Native Training, React Native Coach's Blog, Ray Wenderlich, Awesome React Native. Additionally, the list includes React and React Native newsletters such as React Status, React.js Newsletter, JavaScript Weekly, Flux, Redux, MobX, React Digest, Awesome React Newsletter, Kent C. Dodds Mail, React Native Newsletter, Awesome React Native Weekly. The compilation also covers free courses like Codecademy, Egghead.io, React Armory, LearnCode.academy, paid courses like Frontend Masters, Fullstack React, Tyler McGinnis, and more resources such as React Community Videos, React on Twitter, React on Reddit, React on Slack, React on LinkedIn, React Native on Facebook, podcasts such as The React Podcast, JavaScript Air, React 30, React Native Radio.