I wanted to drop some things off at the Dry Cleaner tonight and found out that both of the ones I used had closed recently- probably due to the economy. At any rate, I was able to easily find several options by typing the following into Google Maps (this also works on Google Local, http://local.google.com):
Then I got a map showing lots of nearby Dry Cleaners. The data will be as fresh as Google Maps can be, and in case you find a business listed on Google Maps that has closed (oops!) there is a “Report a problem” link at the lower right side of the map.
Also interesting, the Google Lat Long blog has a handy post about finding electric vehicle charging stations on Google Maps.