Dear sir
I believe you are looking for displaying advertisements depends on the location of the website visitor. your advertisers should have a facility to mark areas of their interest and as the visitors come to your site, the matching advertisements should be displayed for them. I hope I am in line with your ideas and understood at least basics of your requirements. Please correct me if I am not.
I am an expert software developer who love to do customized web based applications. Please refer my portfolio also. For a quick reference:
[login to view URL] - fully managed publishing portal with payment, CRM, ERP attached
[login to view URL] - Real estate sales promotion website
[login to view URL] - Portal for a reputed tour operator from Kerala
[login to view URL] - information website for the largest diagnostic services network in Kerala.
[login to view URL] - General information site with simple custom cms
[login to view URL] - Information site with simple cms and calendar management
[login to view URL] - order management of small business agent
[login to view URL] - A concept website with all the features of an e-commerce site.
[login to view URL] - A consultant's site with paid services and automatic report generations
These are some of the sites I have created myself form design to database to development. I am confident I can deliver the best solution to you within the minimum turnaround time. Please consider me for this assignment
Thanks and best regards