"Things You Wouldn't Know If We Didn't Blog Intermittently."
These are awesome. Interesting thing about the 1st Norwegian pic: There almost looks like there's a human figure camouflaged in the rock in the bottom left part of the photo.
It has nothing to do with sex. The term is sometimes used to describe attractive things that people are interested in (seed and flower catalogs are sometimes called "garden porn.")
Porn is an unnaturally perfect, idealized image of something that was already appealing, an image that may be logistically impossible. For example, none of these "cabin porn" images show mosquitoes or puddles. To be really pornish, the bottom one would have cropped out the wires.