For those who have trouble staying on task for hours at a time. Which probably means most computer users. Several applications now exist to block off Internet access, selectively block programs, etc. I do this by not turning on my wireless – but then I can’t stream music. So I’ll try something more elaborate.
Economist article: Software that disables bits of your computer to make you more productive sounds daft, but may help keep distractions at bay
Freeware: SelfControl 1.2.2 Block distracting websites for predetermined periods of time SelfControl is an OS X application which blocks access to incoming and/or outgoing mail servers and websites for a predetermined period of time. For example, you could block access to your email, facebook, and twitter for 90 minutes, but still have access to the rest of the web.