It’s an old marketing adage that you must know your customers if you are going to succeed. Without this knowledge, you won’t know:• What products and services to offer• What prices to charge• Where to advertise• How to write persuasive sales copy and• You’ll be flying blind for a lot more marketing decisions you will have to make.If you are an offline marketer, finding out who your customers are (or can be) may involve study of the census data, doing surveys and questionnaires, checking out what existing merchants in your niche are doing, etc.Online,... [...]