Panoramio. The pictures were of the George Miller house and the Prairie City Catholic Mission ruins, two pictures I have posted on this site and have posted on my Picasa account. The email asked if I had permission to go onto the property (I did) and that "treasure hunters have been tresspassing (sic) on the property and digging around the ruins" and that "[t]here is always a downside to doing what you do". I responded saying it was unfair to say my pictures caused the trespassing and vandalism because people have been trespassing at the house for at least ten years and trespassing and vandalism unfortunately happens at just about any abandoned house. But I did remove the photos from my Panoramio account to, as I put in my response email, preserve the historic sites. Let me make one thing clear: I do not condone trespassing, vandalism, theft or anything else along those lines. All of my pictures were taken from public property or I obtained permission.
Ninety percent of the time the property owner is okay with people approaching the property and taking pictures if you ask. If, for some reason, you cannot obtain permission then do everything you can to keep from disturbing the property. Leave only footprints, take only pictures.
I want to preserve these places and I do not want my pictures to lure vandals to places. While I have removed those pictures from Panoramio so they will no longer show up on Google Maps, I will not remove them from this blog or from my Picasa account.