I’m a regular user of Yahoo! Local as a tool… Pretty good for looking up local information and I find the interface a lot better than online Yellow Page listings in general.
That being said, there are still problems there…
Local businesses need to be reviewed and sometimes listings need to be removed. For instance, Jaguar Coffee has been gone from Palm Harbor for years upon years (how I miss Java Jungle — Jaguar Coffee’s predecessor) and yet their listing still exists. Same with the now-closed Palm Harbor Ale House as well as other businesses.
The Yahoo Local listings are very much an online social network of reviews and user driven content… But of course users have to be willing to get active on their own Yahoo Local area in order for the content to be accurate.