Thanks but I have to say that I contacted Tomás at
www.ruraltenerife.net to ask about distributing some pamphlets, and frankly he wasn't much help at all... only to tell me not to disturb the guests there, but gave permisson to leave my pamphlets in their letterboxes.
Well everyone knows these fincas are almost impossible to find without an address or preferably arrival instructions...
Meanwhile, I'm seeing how things are going with
www.casa-rustica.org (now
http://www.tenerife-villa-rentals.co.uk). So far they've been helpful.