One of the first boards that had my daily attention was Oprano. It was definitely one of the original webmaster hangouts back in the early days of this business, and it's still an enjoyable board to find social and business opportunities as well.
Since we all tend to visit more than one board, I recommend you have a look at Oprano. You never know, it just might be the kind of board you'll visit every day.
www.oprano.com