Here is a great post that was posted on here: http://uxmovement.com/forms/innovative-techniques-to-simplify-sign-ups-and-logins http://uxmovement.com/forms/inno

Here is a great post that was posted on here: http://uxmovement.com/forms/innovative-techniques-to-simplify-sign-ups-and-logins http://uxmovement.com/forms/innovative-techniques-to-simplif... And here is the link directly for what you're asking: http://forumsblogswikis.com/2007/08/15/using-ajax-to-get-city-and-state-from-zip-code/ http://forumsblogswikis.com/2007/08/15/using-ajax-to-get-cit... Good luck