As far as ADULT goes, XBiz is the exception.
But there are great boards out there not related to 'the biz':
EN:
http://offtopic.com
http://thyrium.com
http://theforum.com (formerly spf.stileproject.com)
TECH:
http://webhostingtalk.com
http://sitepoint.com
http://dreamweavercafe.com
COMMUNITY:
http://craigslist.org