StackFoundry has an Eagle library collection we use on a regular basis, and continue to add parts to as we design them into products. We don’t have a complete list of all the parts in the library, but any design we make will have all of its component parts sourced from the it.
Note that some of the libraries are extensions of the CadSoft original Eagle libraries – such as rcl, supply1, atmel, etc. Some are collections of other libraries, and some are brand-new originals.
You can find the collection via gitweb at http://git.stackfoundry.com/cgi-bin/gitweb.cgi?p=electronics/eagle-lib.git;a=summary or clone it directly via
git clone git://git.stackfoundry.org/electronics/eagle-lib.git
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