GetListed is a tool designed to help you see where the major Local search engines (Google Maps, Yahoo Local, MSN/Live Search Maps, and Best of the Web Local) have indexed your business. It works like this: 1) You enter your business name and ZIP code; 2) We ping the search engines to see where they've got you listed; 3) If you're listed, we say whether or not you've claimed that listing (see below for more on claiming); 4) If your business is not listed, we warn you of that fact and direct you to the right spot to add yourself to the proper search engine.

More info: GetListed.org