Audioholics and the Audioholics how-to "Crawling for Bass - Subwoofer Placement" were mentioned and linked in today's Lifehacker
Article "Use the "Subwoofer Crawl" to Fine Tune Your Speaker Setup". LIfehacker is a general interest technology and tech-lifestyle news site.
While you're there you may want to take a look at the
flip-up TV with an audio gear cubbyhole behind the TV.