Maintaining a national online local database is a daunting task. Errors are very common in local search results. In an effort to clean up their data, Yahoo is promoting user editing of local business listings.
From the Yahoo Local Blog:
Itâ€™s time to announce a new feature on Yahoo! Local which empowers you to add your favorite new local business, alert others when an old favorite has closed, and add or change business info quickly. Now you can truly be our eyes and ears in your community!
When a new business is submitted, they promise to have it live within 24 hours. With business listings that are already live, they are testing requested changes by giving future users a pop up and asking them if the requested changes are correct.