WIIFM – What's In It For Me, is probably the most important rule. Whatever the purpose of visiting a website is to access information or to buy a product / service, the visitor always has WIIFM in the forefront.
Look at your own areas of interest first. It is much easier to create information, a product or a service in ones own of interest. This does not mean that a new area of interest can not be learnt.
Become an EXPERT in the specific area by providing valuable information in