Lots of helpful guides, from how to store water to how to kill a pig. http://www.velacreations.com
From how and when to seed to watering to storing vegetables. ALthough its method of killing bugs is outdated, its descriptions of problems might be helpful.
Well I dont know when ill need all of these guides, but here they are. So many PDFs on how to grow food, raise animals and livestock, how to build ovens, sanitation or candles.