On this site you can view all the component symbols as well as download them, handy for all sorts of things.. “Circuit symbols are used in circuit diagrams which show how a circuit is connected together. The actual layout of the components is usually quite different from the circuit diagram. To build a circuit you need a different diagram showing the layout of the parts on stripboard or printed circuit board.” Link.
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I spotted this link earlier today on del.icio.us, and I’m curious why so many of the symbols aren’t the ones I see/use on standard schematics. Particularly, why is the resistor now just a rectangle? What happened to the zigzag? The polarized capacitor has been reduced to two boxes rather than a bar and an arc, and the DC and AC power supplies have lost their circle. In general everything just seems strangely simplified, so I’m not sure this is the best reference.
This link is first on a Google search for “circuit component symbols”, but the second link, shown below, agrees more with my knowledge:
http://library.thinkquest.org/10784/circuit_symbols.html
The symbols in the original link are the UK schematics symbols. http://www.ibiblio.org/obp/electricCircuits/Ref/REF_9.html has a pretty good listing too, and they show a lot of the permutations.