It is dependent on the pre-analysis of the entire IP address space. There are more than 4 billion possible IP addresses, and detailed analysis of each of them is a Herculean task, especially in light of the fact that IP addresses are constantly being assigned, allocated, reallocated, moved and changed due to routers being moved,[6] enterprises being assigned IP addresses or moving, and networks being built or changed. In order to keep up with these changes, complex algorithms, bandwidth measurement and mapping technology, and finely tuned delivery mechanisms are necessary.[7] Once all of the IP space is analyzed, each address must be periodically updated to reflect changes in the IP address information, without invading a user's privacy. This process is similar in scale to the task of Web spidering.
Geo-Fencing refers to drawing a virtual barrier around a location using your devices global positioning system (GPS) or Internet Protocol (IP) address, which is just like your virtual address.  Ads inside of geo-fenced areas can be seen on computer, tablet, or mobile devices as potential customers are browsing the web.  Technically, geo-fencing can be any size radius from a particular location, anywhere from a mile to state-wide.  But most people when they are referring to geo-fencing are looking for a very tight radius around a location.   A misconception with geo-fencing is that once inside the fence you receive push notifications, or text messages to the device, which is not accurate.   What geo-fencing does instead is show ads to the person inside the geo-fenced radius if they are browsing the web, to alert them of a local deal or the distance you are from a particular store location.
Don’t forget, content marketing should be customer-centric. One of the best ways to know what content you should create is to find out from your customers. There are a number of ways to go about asking, whether it’s through customer surveys, social media, or just giving them a phone call. Listen to what they have to say, and jot down some unique ideas or suggestions that you might have missed yourself. Sometimes their responses can really surprise you!
You can use this tool to get new ideas for paid search campaigns as well as ideas to drive organic traffic. One big advantage of the tool is it gives you historical statistics on past search volume, as well as predictions about the number of clicks and conversions. You can search for keyword ideas based on what makes sense for your products, services or other phrases you're trying to target. 
Jeff Baum is Director of Services at Hanapin Marketing and a seasoned PPC advertising professional with Hanapin Marketing. a 13 year track record of success in digital advertising. He has developed and implemented strategies to substantially grow revenue and profits for a variety of lead generation and e-commerce businesses. He has also been responsible and accountable for managing hundreds of thousands of dollars in PPC advertising spend per month. Jeff is a recurring writer for Hanapin's blog and PPC Hero.

We must clearly identify our objectives for the campaign and tie the campaign objectives to business objectives. Your objectives could include raising awareness, increasing engagement, generating conversions, and customer retention. Your objectives will need to be tailored to your specific business and you will want to map your objectives to a typical marketing funnel. This chapter highlights how to identify your objectives to measure success.

Attribution. Use attribution data to prove the influence of PPC on conversions either cross-channel or within the channel. For instance, you might learn that certain campaigns don’t convert well, and the instinct is to turn them off. However, if they lead to conversions in other campaigns, you’ll want to allocate budget to keep the conversion path open.
In this example, competitor #1 is rated higher than competitor #2 on product innovation ability (7 out of 10, compared to 4 out of 10) and distribution networks (6 out of 10), but competitor #2 is rated higher on customer focus (5 out of 10). Overall, competitor #1 is rated slightly higher than competitor #2 (20 out of 40 compared to 15 out of 40). When the success factors are weighted according to their importance, competitor #1 gets a far better rating (4.9 compared to 3.7).

I include specific, real world examples of every type of content in the wild as well as showing you how I design keyword architecture on my sites. I even provide a general model and walk you through exactly how to make decisions on what levels of architecture should get a dedicated URL versus what content should live on parent pages or use JSON/AJAX to not generate new URL's but still provide an ideal user experience.
Now the ad servers don’t create this table themselves, they license it from another ‎company like MaxMind or DigitalEnvoy, whose primary business is geolocation ‎data.   This is no enviable task; IP addresses themselves don’t necessarily have an ‎obvious pattern in the way they are assigned like a telephone area code would.  It’s ‎a bit like solving a mystery, and the geolocation companies use a variety of ‎methods to approach the problem.  ‎ /injects>