This is an essay question on marketing, I need your help?

[JC L]

First and foremost, an excellent marketing manager would need to have a solid product or service knowledge that he wants to sell to his target audience. Once he does this, he can use this sites to be able to greatly segmentize his target market. If lets say you are a marketing manager of a pharma product, say you are selling vitamins, these sites can help you find out what sort of characteristics of people, wether they like to be energise, always on the go; their gender, and lifestyle. From these information, they will be able to customize they marketing strategy. and the list goes on.