A list of FAQs is a traditional accompaniment to Linux-related applications, utilities, and the like. An FAQ is typically provided online by the developer/s of the product in question, and enterprising users sometimes host an "unofficial" FAQ as well. Search for the latter with an Internet search engine.
The FAQ is the first document to peruse when troubleshooting a particular application. In addition, FAQs exist for Linux distributions, window managers, and the so-called desktop environments ( KDE and Gnome ).
For Linux newbies, I provide links to three FAQs that collectively address many of the questions posted to the Usenet newsgroups :
The Linux FAQ
The XFree86 X - Window System FAQ
The Linux Kernel mailing list FAQ