If you are like Dad you use the futures page, weather, and cash grain prices.  All those are available online.  if you are using various commentaries it will depend which ones.

I've considered trying to talk dad into a dedicated computer to replace his DTN, and might the next time they raise prices.  I think I can set up a computer with high speed access then set up shortcuts on the desktop so he'd just have to click a mouse and go.  Haven't convinced myself yet.