What I'm thinking here is no reading blogs, no writing blogs, no Facebook, no mindless surfing, no Twitter, etc. I will check my personal email once a week, just in case. I will also use the Internet for things like buying plane tickets and look-ups that would require a phone book (since I don't have one).
I've unsubscribed to a bunch of emails, set filters for the rest, turned off notifications from Facebook and other such sites so as to avoid inbox pollution.
I'm super psyched about this experiment and hope that you check back in November to read all about it.