The list of Linux resources on the Internet is endless. It is, undoubtedly, the best place to find any information you may need. There are also mailing list archives on the Web. Here, you can search the Linux mailing list and newsgroup archives for any information you may need. If you've got a question about hardware compatibility or software configuration, chances are someone else has already asked it.
LUGs have much more to offer than just a mailing list.
They hold meetings and many host installfests. But the mailing lists are at the center of all the other activities. They are open for anyone in or out of Silicon Valley. Finally, there are good old hard copy books. Check out the shelves at your local computer bookstore, or go to one of the online bookstores.