If you are AdWords publisher, there is good news waiting from Google. Google Adwords, the biggest online advertising network, now supports local targeting. According to Google, they now support up to 30,000 US Zip codes.
Earlier you had to create different ads if you had business in multiple locations, but with the new advanced location targeting, you just have to list your addresses. AdWords would automatically take those addresses, and customize the phone numbers, zip codes, etc., according to the location of the person who is viewing the advertisement.
I think Google is going really deep in to customizing. Earlier, they had customized search results with the inclusion of your Goole+ network links. I did not like that, but this location based advertisement targeting should be a hit with advertisers. They can get more out of the buck spent.