I use the Usenet for most of my computer hardware/software issues. The reason is simple: the Usenet is an open forum and threads don't get locked just because someone decides they don't like what you are saying. The price you pay is the occasional troll and spam, but it's a price worth paying IMO. Put your knowledge into a forum and the forum owns YOUR work. The Usenet is out there for anyone who wants to archive it and is globally searchable on Google.