It's tough to program (and doubly tough to do system administration!) without being connected to the internet to search for documentation or solutions to problems.
I have a hard time keeping myself from getting distracted, especially when I'm doing something with intermittent downtime ( http://xkcd.com/303/ , rebooting computers, etc). The only real solution I can think of is to attempt to increase my discipline. Technical solutions all seem inadequate and even silly when you know you can trivially circumvent them.
Download the API docs. Turn off the internet. No reason to really need the 'web when coding... And when you get into bugs you're looking for help on: leave them aside and work on something else- fix them all in one burst. We make excuses for network connectivity, but in reality, we can easily get our work done without it.
For more proof- just ask all your hacker friends where they get the most work done - the answer is nearly always on flights. :)
Some people do not work like that. I look stuff up constantly (if only to make sure there's not a function already existing to do what I'm doing, or to run an error through Google; searching for a quick answer is almost always my first response to any problem, after which I figure it out myself if there's no such answer. Trying to figure out a solution to something that's already solved is make-work, and I have actual work to do.
I have a hard time keeping myself from getting distracted, especially when I'm doing something with intermittent downtime ( http://xkcd.com/303/ , rebooting computers, etc). The only real solution I can think of is to attempt to increase my discipline. Technical solutions all seem inadequate and even silly when you know you can trivially circumvent them.