I have often fought the urge to ask questions that I know aren't appropriate on SO, because I personally haven't come across another online group who's opinions I would trust as much.

What sites do you frequent that you have found good participation from a smart group of people where you can ask questions that are related to software, but not programming problems? This community also has a vast depth of knowledge about things related to software like marketing, graphics/UI, running a small business, working in bad jobs, etc. that would greatly benefit everyone else.

Where do we go to tap all that knowledge?

On stackoverflow.uservoice.com there is a popular suggested feature to sanction, or add to SO, a place to hold discussions that aren't about specific programming questions. It seems that the suggestion has been denied in the past though.