Here is a comprehensive list of products I think would be useful to you:
I am affiliated to many of these products and therefore earn a percentage of the revenue from each product sold. Of course it will make no difference to how much you pay for any product – you would be making the same amount of investment regardless of how (and if) you buy. Affiliate marketing is a part of the Online Information Business model that I hope you will undertake affiliate marketing too. I cover it in my course here: http://infobusinesshub.com/10stepstobuildinganonlinehomebusiness.