Ever wonder if it’s really safe to use location-based sites like Foursquare or Gowalla? The new site PleaseRobMe.com is trying to make a point by listing people who are checking in somewhere other than home via Foursquare.

Anyone who uses the services should know this is possible via a simple search or over Twitter searches, if the status update is auto-tweeted.

But this is an example of how technology usage is like having windows in a house. We sometimes sacrifice absolute security to allow light in and a view out.

And in that same vein, if you want to see the addresses of the people that built the site, just do a WhoIs search over PleaseRobMe.com and mail them your warmest regards.