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Selected reading on the Internet.
Questions and help
Unix & Linux Stack Exchange is a question and answer site for users of GNU/Linux. This site is all about getting answers.
Ask Ubuntu is a question and answer site for Ubuntu users. Even for users of different distributions of GNU/Linux this can be a helpful resource for finding answers.
Ask Fedora is a forum for Fedora users. Here you can speak to the community to get help with installing, using, customizing, and upgrading a system running Fedora.
There are many real-time discussion channels for the free software community. IRC, or Internet Relay Chat, is a real-time, text-based form of communication. You can have conversations with multiple people in an open channel or chat with someone privately one-on-one. Major GNU/Linux distributions have their own dedicated IRC channels where you'll find users and developers that are happy to answer your questions. Here you can find the IRC channels for the distributions we recommend:
If you need someone you can reach on the phone anytime to assist you, the companies behind most distributions provide commercial support: see Debian consultants, Ubuntu Commercial Support, or Red Hat Enterprise Linux for example.
Learn and read more
A short, entertaining way to clarify thoughts about free, libre, "open-source" software.
The Free Software Foundation defends and advocates the very concept of free software that gave birth to GNU/Linux.
Note: these links are proposed as a recommendation. They are not commercial.