I can make it a month if I have other things occupying me. But I get cravings pretty quickly. Ignoring blogs, forums, email, and fandoms; regular internet access just makes life easy. I like being able to look up movie/tv times, wikipedia some topic from a book I'm reading, use it for weather/news, recipes. Having instant connection to information is just damn useful and a pain in the ass when it's unavailable. Then, there is the community aspect of it which is incredibly addictive.