Yahoo Answers offers you the chance to ask questions in a user-friendly open forum. The forum is broken down into various categories such as 'Pets', 'Health' and, of course, 'Computers & Internet'.
CNET provide various forums (or is that 'fora'?) where you can ask computer-based questions; including one aimed at 'Computer Newbies' in particular.
Both sites require registration to submit and respond to questions. I check both regularly for opportunities to share my *ahem* sagely advice.