CLhack Visual Craigslist Search
CLhack is a visual search tool for Craigslist. The site lists Craigslist ads in a visual grid that makes it extremely easy to quickly scan for what you want.
The interface is similar to a web browser. On the left hand side is a long list of States, subdivided into cities and Craigslist categories. Searches come up in a tabbed list at the top of the window, and clicking on any image brings up detailed listing information.
Very useful application that should help speed up search time and help users find what they're looking for.