It is the task where your interest matters a lot, then choose your niche according to that, then you can contact to any E-commerce solution provider who can help you to get your business going.
First of all, analyze your competitors and then get the keywords and then use SEo techniques like
Social bookmarking
Image backlinks
Forum posting
article submission.
Infographics are the visual or graphical representation of the stats, which takes a lot of space to explain in making doc file. It is the best way to present stats in limited resources.
It is the black hat SEO technique where the original content is hidden to the search engine bot which is replaced by another content which is not truthful.