install pure data:
http://at.or.at/hans/pd/installers.html
mailing list archives:
http://lists.puredata.info/pipermail/pd-list/
documentation:
http://www-crca.ucsd.edu/~msp/Pd_documentation/x3.htm
http://wiki.puredata.info/
user sites / projects
http://pd.klingt.org/pd_ring/
http://software.robotcowboy.com/rc-patches/
various synths, sequencers and tracker devices
http://footils.org/
http://www.netpd.org/About
http://www.obiwannabe.co.uk/
http://music.ucsd.edu/~tre/
Tom Erbe's university course materials. includes heaps of links to pd patches.
http://ydegoyon.free.fr/software.html
related links
http://www.soundonsound.com/search?url=%2Fsearch&Keyword=%22synth+secrets%22&Words=All&Summary=Yes
excellent series of articles on sound synthesis. the examples are for analogue/modular synths, but you can use the ideas in your pd projects.
http://www.oreillynet.com/pub/a/oreilly/digitalmedia/2006/06/29/secrets-of-the-arpeggiator.html
secrets of the arpeggiator
http://freesound.iua.upf.edu/index.php
HUGE free sample database
