There are 12 listed for the Veterinary and Agricultural Sciences. N, P, K statistics are available by country from as far back as 1961. We're not even going to try and touch this one. You, no doubt, have your own views on this farm product, its effects, the economics, the growers lifestyle etc etc etc. There's plenty of info on the web if you want more fodder.
Sound quality is terrible, but fun for a while.
Here's another great freeware site. Not useful for ag software but really great for all those nifty little utilities that make using your computer a whole lot easier. A must bookmark for those of you who live or die by your productivity in front of a computer monitor. Came out around the time of the latest BSE episode. No idea where it came from, sounds Monty-Pythonesque.