I run a local blog, and I would like to offer advertisers the ability to buy ads knowing all of the impressions will be from the local community. For everyone else I want it to show typical google ads.
My questions are:
How feasible is this?
Is there any readily available code or service that can do something like this?
The cheaper the better, as I can do some basic coding myself. I've read a little bit about ipTables but haven't delved too deep into it. If anyone can offer some suggestions, would greatly appreciate it...