I saw this site and figured stuff on it about the old dairy tech might help SOMEONE here eventually:
Manuals - The Antique Cream Separator Gallery and Info Site
http://www.arrl.org/files/file/Techn.../pdf/88615.pdf
http://www.arrl.org/files/file/Techn.../pdf/98622.pdf
http://www.arrl.org/files/file/Techn...pdf/108638.pdf
http://www.arrl.org/files/file/Techn...pdf/118630.pdf

Mostly duplication of other sites' stuff, but there ARE some things here I haven't seen elsewhere:
My “Electronic” Survival Library

You'll need to do a search for "PDF","download", etc..no direct link to each PDF:
Build An Ark
http://shtfblog.com/wp-content/uploa...aine_woods.pdf

Old stove instructions:
Gallery list: Instructions - Classic Camp Stoves - Powered by FusionBB

Some of you who still have tools from when they made that stuff here in the US might find one or more of these useful:
Rose Antique Tools old tools and history
Woodworks Library
Wild Food Collection

For any Brits in the audience:
Wild Food School - Urban Foraging Guide and Foraging eBooks
http://www.sustainweb.org/resources/..._Your_Lawn.pdf
http://www.primitivefire.com/download/bowdrill.pdf
http://www.cap-es.net/zips/gnd2airsignals.PDF
Index of /documents
Index of /Onsite/PDFbin
Compendium of Useful Information
Free Cloud Storage - MediaFire
Free Cloud Storage - MediaFire

Shelf Stable Ingredient Cookbook:
http://foodstoragemadeeasy.net/fsme/...BOOK-LARGE.pdf
http://mtbest.net/chest_fridge.pdf
http://www.pvcplans.com/ArchGrnHouse.pdf

You'll need to click on survival manuals on the left side of the page:
The Insurgent
http://www.solar-guppy.com/forum/dow...calculator.zip

Free PDFs. Some are downloads, some are read-online only
The National Academies Press
http://www.scoutbase.org.uk/library/...s/fs120006.pdf

A few downloads from a Brit scout site. Might be useful for teaching stuff to your kids:
PioneeringProjects.org
http://www.nakedwhiz.com/eggbase/fplr1464.pdf

I keep seeing peoplepost about using a straight razor post-SHTF. You might want to read up on this:
http://www.shavemyface.com/downloads...azor-Shave.pdf

http://www.vikingpreparedness.com/fi...Containers.pdf
http://earthtainer.tomatofest.com/pd...tion-Guide.pdf
http://www.cr.nps.gov/history/online.../proenneke.pdf
http://www.drzero.org/temp/pantry1.pdf
http://www.motherearthnews.com/uploaded ... r_hive.pdf .

Couple of food/ foraging PDF links from this page:
The Really Wild Food Guide - ISBN 0 9544158 0 9 - Edible Wild Plant Foods
Grandpappy's Articles - by Robert Wayne Atkins, P.E.
Food Storage Printables – All About Food Storage
My “Electronic” Survival Library
http://www.princeton.edu/~oa/nature/tracking.pdf
http://www.princeton.edu/~oa/nature/trackcard.pdf
http://www.princeton.edu/~oa/nature/naturobs.pdf
Reference Documents « nc preppers
http://americanpreppersnetwork.net/d...ile.php?id=171
Growers Library, Information, Resources, and Tips - Johnny's Selected Seeds

Tinfoils loose here, reader beware:
Anonymous - Survival Guide for Citizens in a Revolution
http://www.icrisat.org/Journal/volum...undnut/gn4.pdf
FoodThinger
http://www.pioneerliving.net/-%20New...20survival.pdf
http://hurthawaii.blogs.com/EDIBLEAN...INALPLANTS.pdf
http://www.healthunlimitedplus.com/wild_edibles.pdf
[url[http://www.laylowsbunker.com/info_pump/Old%20Knowledge%20Books/#ClimateControl[/url]
http://markedwardcampos.com/portfolio/master-lock/
Learn to Pick Locks for Fun and an Increased Understanding of Security
Digital library of government standards and specifications

Check out the manual and pamphlets sections:
Publications : Benson Institute

Not sure I'm ready to eat these, but some of you might find this cookbook interesting!
http://www.newsdesk.umd.edu/pdf/cicada%20recipes.PDF
http://www.google.com/url?sa=t&sourc...WcQneSBBOn4B0g
http://www.itsadisaster.net/uploads/...ni_ebk_apn.pdf
http://americanpreppersnetwork.net/d...ile.php?id=900

Planting schedules:
Heirloom Seeds Catalog
http://americanpreppersnetwork.net/d...ile.php?id=535
http://americanpreppersnetwork.net/d...ile.php?id=536
http://americanpreppersnetwork.net/d...ile.php?id=537
http://americanpreppersnetwork.net/d...ile.php?id=594
http://americanpreppersnetwork.net/d...ile.php?id=598
http://gulffishing.com/CrabTrap.pdf
Home
Index of /docs
http://www.beutilityfree.com/1Source...ceBookV3.9.pdf
Gardening ebooks and downloadable PDF Files
http://www.appalachiantrail.org/docs...age-cables.pdf
http://www.appalachiantrail.org/docs...ion-manual.pdf

It is a dirty job but I suppose someone throughout history has had to do it. if PDFs on sewers and their history/ upkeep are your thing, look here:
Tracking down the roots of our sanitary sewers: Articles
http://www.self-sufficiency-guide.com/eBooks.html
This page no longer exists
http://image.guardian.co.uk/sys-file...tychartpdf.pdf
Index of /
http://idcoa.cloverpad.org/resources...ng_Fukuoka.pdf

Hadn't heard of this site. Free e-books:
Forgotten Books :: Free Books :: Classics, Philosophy, Myth

Free audio books:

Free Audio Books - Download an audio book in mp3 or iPod format today!
http://www.lasc.us/Fryxell_Book_textonly2.pdf
Index to Articles, Firearms, Shooting Sports, Cast Bullets, Industry News, Handloading
http://www.rtconnect.net/~wjmanley/S...ASswagedie.pdf
Toyotomi U.S.A. - Owner's Manuals - Portable Heaters
http://microhydropower.net/download/layman2.pdf
http://www.google.com/url?sa=t&sourc...Lj4chmcMrA5jZA
http://www.poppainc.org/pdfs/Daylily_recipes.pdf

Generator Manuals:
Index of /honda/manuals
http://www.wvu.edu/~exten/infores/pubs/ageng/epp13.pdf,
Pico hydro documents
http://ce.byu.edu/cw/womensconferenc...ns/pdf/52a.pdf
http://extension.unh.edu/resources/r...62_Rep1293.pdf

You have to poke around the site to see all downloads:
American Livestock Breeds Conservancy - Educational Resources Free Straw Bale Emergency Shelter Plans

Some of this stuff looks interesting
Experimental IRON SMELTING - collected documentation for the ongoing series by Darrell Markewitz in Ontario Canada

Few PDFs here on quilts, tarps, BOB Calculators, etc
Team Gunn Parker - Downloads
http://www.cdc.gov/mmwr/pdf/ss/ss5709.pdf
http://www.byui.edu/ce/assets/docume...Janet01_09.pdf
http://www.afpmb.org/coweb/guidance_.../tg36/tg36.pdf
http://www.ci.la.ca.us/dod/handbook.pdf
http://www.redcross.org/museum/prepa...gnlanguage.pdf
http://www.fema.gov/library/file;jse...2-000bdba87d5b
Remote Areas Emergency Medicine and Survival Downloads
http://freewebs.com/maestro_mr/TWCS.pdf
http://www.kuffelcreek.com/Lightweig...IGHTWEIGHT.pdf
http://www-personal.umich.edu/~acote..._published.pdf
http://skipulk.com/images/pulkbook.pdf

If metalworking is in your plans:
TheSheetMetalShop.com Library
http://www.karamat.com/Articles%20by...20Survival.pdf
http://www.karamat.com/Articles%20by...20Survival.pdf
Downloads 2012 | Advanced Survival Guide.com
http://wretha.googlepages.com/ClayPo..._final_web.pdf
The National Center for Disaster Preparedness
http://www.ncdp.mailman.columbia.edu/files/NCDP07.pdf

For those who want to retrofit shipping containers as shelters:
http://www.containerhome.info/resour...wings-20GP.pdf
https://docs.google.com/fileview?id=...E5&hl=en&pli=1
http://yabe.algebra.com/~ichudov/mis...k-TM-5-125.pdf
http://www.fas.org/sgp/crs/RL31857.pdf
http://home.fuse.net/Fengineering/bi...ette_Press.pdf
https://docs.google.com/spreadsheet/...1R2lzQXc#gid=0
DERA International - The Disaster Preparedness and Emergency Response Association - Online Library
http://www.cauldwell.net/classes/cer...valcooking.pdf
http://www.dandies.org/resources/Ezi...k_planning.pdf
http://www.pvcplans.com/PoultryPen.pdf
http://www.rocketstove.org/index.php...d=24&Itemid=91
http://usscouts.org/cooking/BackpackDutchOven.pdf
Files | The Tampa Readiness<br>and Survival Group
4shared - My 4shared - shared folder - free file sharing and storage
Truth is Treason | Files | PDFs | Links
CDC - A Guide to Drinking Water Treatment and Sanitation for Backcountry and Travel Use - Camping, Hiking, Travel - Drinking Water - Healthy Water
http://www.netwoods.com/ftp/sommerscookbook.pdf
http://api.viglink.com/api/click?for...13242477334623

https://www.tacticalgearsuperstore.com/ebooks
http://www.thehomegunsmith.com/pdf/caselman-thg.pdf
http://www.thehomegunsmith.com/pdf/caselman-thg.pdf

Home schooling e books
http://downloads.wolfeblog.net/downl...ng-and-eBooks/

Food Storage Printables – All About Food Storage
Home, Farm, Ranch « The EssentiaList

Few e-books here:
Wilderness survival (Open Library)
FREE downloads! | The Survival Mom
http://nchfp.uga.edu/how/cure_smoke/curing_pork.pdf
Home - Website

some pdf’s here:
Antibiotic quick reference - FluTrackers
http://drugtopics.modernmedicine.com...76/article.pdf
http://web.aces.uiuc.edu/vista/pdf_pubs/houseinv.pdf
List of ALL Liberated Manuals
http://foodstoragemadeeasy.net/fsme/...ECIPE-BOOK.pdf

Mix of medical stuff here:
http://www.acep.org/content.aspx?id=31674
Downloads - I Forge Iron
https://skydrive.live.com/?cid=0641f...82F0DBC%215722
Pamphlets
American Tactical Imports
https://docs.google.com/viewer?a=v&p...kyZmU1N2M2Mjcy

Some archery PDFs
http://marshal.ansteorra.org/archery...rrowshafts.pdf
Book index
http://www.bushcraftuk.com/downloads...%20archery.pdf
d o w n l o a d
http://marshal.ansteorra.org/archery...001/arrows.pdf
http://www.wildernessoutfittersarche...rrowmaking.pdf
Build a Long Bow
http://www.deliriumskid.com/files/ArrowmakingR1.1.pdf
http://www.thepathfinderschoolllc.com/Arrowmaking.pdf
http://www.alanesq.com/longbow/bsb/T...Bowyer-263.pdf

They've revamped their downloads sections

Canadian Wilderness Survival.com
All sizes | 1776_pro08 | Flickr - Photo Sharing!
All sizes | AT&T Outhouse | Flickr - Photo Sharing!
Preparedness and survival Guides and ebooks books - Emergency Preparedness | How to Survive

Don't recall seeing a couple of these elsewhere

Survival Guides - Doomsday Preppers - December 21st 2012 | 2012Prepared.com - Are you prepared for December 21st 2012?

OK, haven't seen this stuff elsewhere

Books on Solar, Hydrogen, Fuel Cell, Wind Energy, Biomass Energy, All DIY and How To and More..
http://www.eseeknives.com/nav-card-set.jpg
http://www.eseeknives.com/survival-card-set.jpg
booze

http://www.knowledgepublications.com...stilling_3.pdf
http://www.knowledgepublications.com...ns_dot_com.pdf

http://www.urbanhomemaker.com/downlo...Best_Bread.pdf
http://phobos.physics.uiowa.edu/~rlm.../AJP001418.pdf
http://www.martinfrost.ws/htmlfiles/june2007/imhv3.pdf
http://www.bethandevans.com/pdf/Livi...rigeration.pdf

http://www.wot.utwente.nl/publicatio...n_windmill.pdf
http://www.bestglide.com/Fishing%20Kit%20Manual.pdf
http://www.aces.edu/pubs/docs/A/ANR-1151/ANR-1151.pdf
http://www.thegreencenter.net/pdf/zweig.pdf
http://www.teatreewonders.com/suppor...s-cookbook.pdf
http://www.co.cowlitz.wa.us/noxiousw...0Livestock.pdf
http://joshtickell.com/files/downloa...heFuelTank.pdf

Just another generic list

http://newyorksearchandrescue.org/do...ady%20Pack.pdf
Index of /jonboon/free/survival
http://nchfp.uga.edu/how/store/texas_storage.pdf
Practical masonry (Open Library)

http://www.disastereducation.org/lib...ster_Guide.pdf