There are over a dozen Linux-related newsgroups on Usenet. For example, try news:comp.os.linux.hardware or news:comp.os.linux.setup for help on hardware issues or install issues.
There are also plenty of mailing lists covering a wide range of issues, and all you need is an email account.
If you really need immediate feedback, there are also several IRC channels devoted to Linux. Even on Usenet or on mailing lists, you usually won't have to wait longer than a day for a response.