Spain

For Spain, there are several websites which have huge lists of Metal pubs and bars – so if you think there's not enough info here at the Metal Travel Guide, you also might want to check out the following pages:

Manerasdevivir, http://www.manerasdevivir.com/bares.php
Mephisto, http://www.mephistobcn.com/rockcelona.html
La Ruta de la Merluza, http://www.lujuriarock.com/bares.htm
Mental Winter, http://mentalwinter.blogspot.com (this one is not only about Spain, but in Spanish language)

And for a list of upcoming Metal gigs in Spain, check out this page:
Rock Circus Agenda: http://www.rockcircus.net/agenda/agenda.html