A negligible population would use such a tool, not only because hardly anyone in the "real world" uses bookmarklets -- and then what about NOSCRIPT?, but the ti

A negligible population would use such a tool, not only because hardly anyone in the "real world" uses bookmarklets -- and then what about NOSCRIPT?, but the time it would take to scrape, process, geolocate, and present the apartment listing would dissuade the most diehard fans -- all that assuming of course you could get around the cross-domain JavaScript issues lurking around every corner. It's just not a viable solution.