Especially to earn online, ideas come in the form of niches and you can have a simple idea of creating and ebook or report with valuable information on your chosen niche topic with related affiliate links directing towards actual resources, products and services that people will benefit from.
Well you look at others who are doing it and not the scammers but actually the internet marketers that can back up their claims with visible proof and testimonials, also you can judge that a marketer online is successful with the quality of their sites and whether they have paid a good amount on web graphics and site layout and design.
Often these internet marketers present to their subscribers frequent top quality content on how to earn and the right programs to promote to earn a profit online in their email follow ups, if they are good at their marketing they will have several videos for you to look at, detailing valuable presentations that will be of use to your search engine campaigns.
Affiliate programs - If you target the right affiliate program for your niche markets content, then you can create some serious income from affiliate marketing, plus there are some other factors like price of the product and your commission rate and also whether your chosen affiliate product or service is in high demand.
ecommerce sites - Setting up an ecommerce site can provide you with an online store that caters to a specific niche or has almost everything you could ever want.( Ebay is a popular auction site were you can sell almost anything.)
Membership sites - Membership sites can be quite specific to any target market you want and provide high quality information