After reading those very GREAT web sites here in the open source community of Linux...try here
http://www.wiki.com for short stories about <mysteries> YOUR interests. Try here...
http://www.tldp.org/HOWTO/HOWTO-INDEX/howtos.html for tutorials about the Linux environment. A simple
http://www.google.com will find a quick search item, sometimes. When YOU get stuck, try web pages that either involve a "topic" or are included in a Forum of interest. This will steer YOU in the direction of comprehension and utilization.