If you are looking to market a product or service you offer but only want to offer it in certain locations then you may want to consider a targeted pay per click campaign. These campaigns can be set up to only show your adverts to certain audiences based on location.
Pay per Click can be a great way of advertising a product or service to the public and one of the many benefits of Google Adwords is that you can start getting traffic to your site almost instantly. If you have a product, service or even want to advertise your whole business to a specifically targeted geographical location then most PPC software allows you to do this.
When looking at Google Adwords, you can easily create a campaign or number of campaigns and select them to show to either a set location, drawn area on the map (radius) or list of multiple locations. You can even show it to the whole of the UK and just exclude certain places if that better suited. The best way to get high Click through rates on these ads are to make them very specific to each area. Make sure you include the area for that ad group in your advert.