PadMapper is a useful web app that lets you search for apartments based on almost any criteria you can conceive of.
One of the most frustrating things about apartment hunting is how often you have to jump from the apartment search engine you're using to Google Maps and back again to get an idea of where the places you find are actually located. PadMapper eliminates the extra step by integrating Google Maps into its interface.
PadMapper pulls information from popular apartment search websites like craigslist and adds it to the familiar interface of Google Maps. You can choose to register or search without logging in at all to PadMapper. There are also quite a few different ways to filter your searches to help narrow down the options shown to you. You can filter by minimum and maximum price you're willing to pay, how many bedrooms and bathrooms you're looking for, and even whether pets are allowed.
Clicking on PadMapper's highlighted link for a specific apartment entry will open a new tab in your browser, directing you to the site where the apartment listing was originally posted. The only downside is that some of PadMapper's listings are no longer available, which you won't discover until after you visit the site where the post originated. Also be aware that using your mouse's scroll wheel will either zoom in or out pretty rapidly, just like on the official Google Maps site, as opposed to moving you up and down on the map screen. You'll actually need to employ the time-honored click-and-drag to do that on PadMapper.
PadMapper fills a much-needed place in apartment searches everywhere with its easy-to-use interface.