From the very beginning of business, marketers have reached out to their community to create demand for their products and services. The larger the group of people you can reach in one placement, the more value you can get from a certain channel. The reach of marketing channels has been expanding over time; starting with newspaper ads and local radio reaching a region to new ad networks such as Facebook and Google reaching half the globe. And not only the reach is expanding, the insights into the audience, as measured in actual data about the individuals, is growing. Using this information, you can create very specific segmentations that will allow marketers to target those profiles that are highly relevant and receptive to your information.