We are in the design stage of putting together a database containing houses which we want to be searchable by street address or zip code. Essentially a site visitor will enter city / state OR zip code, then our search results should include all houses within a given radius of that location. We also want to know the distance so that we can sort the list from closest to furthest away.
We would appreciate any recommendations with respect to plug-ins or techniques which will enable us to accomplish this task. Thanks!