You can find electronics magazines and books at your local library including some at the reference desk also.

Otherwise you can find a lot of circuits on the Internet:

Some stuff might be on Microfilm & Microfiche and or on CD Rom (CDs).
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First of all:
http://www.kpsec.freeuk.com/symbol.htm
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For example:
http://www.sanantonio.gov/library/collections/periodicals/
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Then:

http://www.swtpc.com/mholley/magazines.htm


http://www.discovercircuits.com/list.htm

Encyclopedia of Electronic Circuits

http://www.amazon.com/exec/obidos/ASIN/0830619380/mykepredkosmicro

http://users.otenet.gr/%7Eathsam/index.htm

http://www.schematicsforfree.com/archive/

http://www.delabs-circuits.com/cirdir/hobby.html

http://www.freeinfosociety.com/electronics/schemcat.php

http://www.dmoz.org/Science/Technology/Electronics/Reference/Circuit_Archives/

http://www.uashem.com/

http://www.freeinfosociety.com/electronics/schempage.php?cat=6

http://www.ee.oulu.fi/~arik/schematics.html

http://english.cxem.net/

http://www.electrokits.com/

http://www.radiolocman.com/shem/schematics.html?di=44137

http://www.radiolocman.com/shem/schematics.html?di=44978

http://www.radiolocman.com/shem/schematics.html?di=45280

http://www.radiolocman.com/shem/search.html

http://www.electronics.oulu.fi/links/schematics.html



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Other stuff

http://www.instructables.com/

http://www.instructables.com/id/Circuit-Building-101/

http://www.instructables.com/tag/?q=pcb&limit%3Atype%3Aid=on&type%3Aid=on&type%3Auser=on&type%3Acomment=on&type%3Agroup=on&type%3AforumTopic=on&sort=none

http://amasci.com/amateur/elehob.html#mags

http://www.eskimo.com/~billb/amateur/elehob.html

http://www.nutsvolts.com/projects.php

http://www.elxevilgenius.com/links/hobbyelectronics.html

http://www.electronicsteacher.com/list-of-schematics/

http://www.electronickits.com/Books/Electronics%20For%20Dummies.htm


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Something to think about:

http://www.2600.com/news/view/article/348

Before too long you might not be able to neither buy nor build any electronics (?), Kind of crazy, Right?

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Some free programs:

First of all download the free and very good Irfanview program:

http://www.irfanview.com/

http://www.tucows.com/preview/194967

http://www.tucows.com/preview/415586

Then download: 

http://www.freepcb.com/

http://tinycad.sourceforge.net/

http://veecad.com/

http://www.pad2pad.com/download/index.htm

http://www.lis.inpg.fr/realise_au_lis/kicad/

DipTrace 1.40 Freeware:
http://www.diptrace.com/downloads/dipfree_en.exe
http://www.diptrace.com/download.php
http://www.diptrace.com/