Ask HN: Website advice on Drilling Down fast...

The problem I have is I want to drill down very fast for the user in a web based environment. Exp: I have an organization I need to find located in Daytona Beach, Florida, USA. If I gave the user a list or a map of countries they can look at, what is the fastest possible method to get to Daytona Beach? I could go USA -> Florida -> Daytona Beach -> Organization. While doing so I create a new page each time. This example can be seen at craigslist.com because thats how they do their drill down. I was sort of thinking like a list on the very left of the screen. The user clicks on the country and a new list gets generated via javascript to the very right of it of states. They then click on a State and a new list then again gets generated to the very right of that with cities. etc... I would love to hear more ideas. I want the fastest user interaction drill down with it being extremely simple for the user. So, what do you think?