Steven Harris over at Collections 2.0 points out this post declaring August 30 Offline Day.
I think it's a good idea. I've been feeling overwhelmed by my connections lately - and the constant nature of them. Between work email, personal email , Twitter, Facebook and all the rest, there's a level of overwhelming that's coming to a peak.
It would probably be mentally healthy for me to make a real effort to disconnect as completely as possible for a single day.