Product or Service

One of the first things you will have to decide when setting up an Internet business is whether you want to sell a product or a service, both of which have their advantages
and disadvantages.

Products:
Advantage: unlimited income potential because you are not constrained by time, the way you are with a service (the more product you sell the more income you make -
especially when you are automated).
Disadvantage: requires stocking and shipping (or drop-shipping from a supplier).
Disadvantage: generally requires you filling large amounts of orders to make a reasonable living, unless you have a product with a very high profit margin.

Services:
Advantage: it is easier to make a profit quickly because the entire price of a service is paid to you (except for any overhead). Advantage: services can generate a great
residual income because the client may want to hire your services again and again.

Disadvantage: you are limited to a modest income because you can provide only so many services each day (unless you hire employees to perform services for clients).
In my opinion, selling a product online has, by far seen the biggest profit potential in the long run. Once you get a successful product, you can automate the system and move on to new products that will generate multiple streams of income.

If you need immediate cash flow, providing a service is the fastest way to produce instant income... but it will never pay off as big, in the long run, as selling a product with a
high profit margin.

There are two main approaches to making money on your website.
Directly offer a product/service for sale at your website. You can offer a product or service on your webpage or you can offer free information to lure people to another where you then have a product or service available. This is the most popular way of making money on the net because it's easy to set up and you can get the initial profits rolling almost overnight.

Or,

Get as many visitors to your site as possible by enticing them to come with something special you offer (Such as valuable information, help, files, free stuff, etc.). Then, once
the visitor counts are high enough, you can sell advertising space on your site or sponsorships or banner advertising.