I Have 40 Niche Website Ideas You Can Earn Money Online?

-I researched all niche markets and I wrote which is best and how to start business using that niche.I wrote in ebook "

How much cost for niche website,marketing and how much the market size and possibilities of earn money".



For Example : Start a Niche Digg like site.



You already known digg has populated.but It is not covering niche market like "web programing","php","Internet Marketing","Specific Business" and etc..



I will provide with Php script also.



my question is "Is it valuable information or not to create a ebook to sell online"?



please give me your answer.yes but first you have to win the trust of your customers than sell them.

i am interested in it. you can share with me i am student