Summary of websites and blogs with Cultural and Historical contents in both Natural Parks:
Natural Park in Arribes and Parque do Douro Internacional. Portugal - Spain.
Websites:
http://www.arribesdeldouro.com/
http://www.wikisalamanca.org/
http://rayaduero.org/
More visited blogs:
http://www.aldeadavila.com/historia
http://www.jesusmaria11.blogspot.com/
http://www.labodegadelasolana.blogspot.com/
http://www.mogadourense.blogspot.com/ MOGADOURO
http://revisitandocastelobranco.blogspot.com/2010/02/uma-comedia-albicastrense.html CASTELO BRANCO (Freguesía de Mogadouro)
http://trasmontesdepaisagens.blogs.sapo.pt/2009/03/ Cultural landscapes from Tras-Os-Montes region.
http://www.vilvestre.net/
About the "Spanish Independence War in Salamanca" (1808-1812)
http://www.lazarzapumareda.blogspot.com/
To discover linguistical values from "old Ribera habla", "Lumbrales language" and tradicional Tales, "Cancionero Salmantino":
http://www.cuentoquenoescuento.blogspot.com/
http://www.scribd.com/doc/25918761/Matilder-Cherner-y-Cuentos-de-Las-Arribes
Official websites do not offer further information from Cultural aspects and Monuments or History:
-"La Salina" Diputación de Salamanca Province: http://www.lasalina.es/Aplicaciones/archivosmun/index.jsp
-Cultural Heritage in "Junta de Castilla y León":
http://www.jcyl.es/web/jcyl/CulturaPatrimonio/es/Plantilla66y33/1246988230374/_/_/_
"The Houses of the Park" in Fermoselle and Sobradillo usually offer cultural visits and expositions, bus their own webs, usually, do not dedicate cultural details:
http://turismocastillayleon.com/cm/turcyl/tkContent?pgseed=1265412693175&idContent=507062&locale=es_ES&textOnly=false
"Parque do Douro Internacional", located in MOGADOURO:
http://portal.icnb.pt/ICNPortal/vPT2007-AP-DouroInternacional?res=1280x800
presents an interesting section, "digital library" where you can afford further information from this old portuguese region, and etnologhical matters:
http://portal.icnb.pt/ICNPortal/vPT2007/O+ICNB/Biblioteca+Digital/Biblioteca+Digital+PNDInternacional.htm
This Guide is not complete, and when I find out more websites i will publish them.