País (El): http://www.elpais.es/
Palm: http://www.palm.com/
Palm eBook Store: http://ebooks.palm.com/
Palm Reader: http://www.freewarepalm.com/docs/palmreader.shtml
PARC (Palo Alto Research Center): http://www.parc.com/
Paris-Match: http://www.parismatch.com/
Paulus Swaen: http://www.swaen.com/
PCMCIA (Personal Computer Memory Card International Association): http://www.pcmcia.org/
Pearson Education: http://www.pearsoned.com/
Penguin Group: http://www.penguin.com/