I just confirmed with Bank of America Online Banking Customer Support that access to their online banking site is down. It's been down on Monday, September 22, 2008 since about 2 p.m. Eastern Time and they do not expect it to be back up until 5:00 p.m. or sooner.
I am not surprised that they don't mention of it on their website. The Bank of America website log-in error message received in my browser was:
The Connection to the server was reset while the page was loading
The network link was interrupted while negotiating a connection. Please try again.