linux.com is the go-to resource for open source professionals to learn about the latest in linux and open source technology, careers, best practices, and industry trends. get news, information, and tutorials to help advance your next project or career – or just to simply stay informed.

spinics.net is mostly mailing list archives these days

helping open technology projects build world class open source software, communities and companies.

news and feature lists of linux and bsd distributions.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

the linux documentation project is working towards developing free, high quality documentation for the linux operating system. the overall goal of the ldp is to collaborate in all of the issues of linux documentation.