Where can I find resources to learn inline assembly in C using AT&T syntax? [closed]

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I am trying to learn assembly, and finding proper documentation is really hard. It really makes me appreciate PHP and Java's documentation <3. I cannot quite find a good book or resource for inline assembly in C using AT&T syntax. I am looking for that one resource that has everything about assembly. Could anyone please suggest some books or resources for me to learn everything about assembly (at least most of it)?

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Programming from the Ground Up

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First of all: Read object code. Compile some C program you have written using '-O3 -g', and check the object code using 'objdump -S yourprogam|less'. Try to find the optimization opportunities you compiler left out ;-)

Regarding AT&T syntax and inline assembly:

http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html

Read Agner Fogs stuff regarding optimization, somewhat advanced, but incredibly useful if you really want to find out where you can squeeze out some cycles: http://www.agner.org/optimize/

For the instruction set: http://www.sandpile.org/

and of course http://www.intel.com/design/intarch/manuals/243191.htm

Some general introductions about writing assmebly, somewhat dated but useful for windows too:

http://www.linuxdoc.org/HOWTO/Assembly-HOWTO/