Building your internet business from scratch would logically require that you have a clear understanding of what particular field of business is that which you are inclined for.
This decision should be combined and correlated with the particular technology that should best fit your exact niche.
Despite that offline and online worlds overlap, still there are segments that the known online money making technologies have not developed far enough into.
Assuming that your business niche has been chosen - consider some ways to earn money - choice one would be in becoming an affiliate for the larger manufacturer using your online presentation to promote their products for a certain commission fee to be received from the manufacturer.
Choice two would be slightly different from number one - the drop shipping.
This would involve your broader participation in the sales process while the products' manufacturer is to perform the delivery of their goods to your customer with the subsequent commission payable to your business.
While first two options might well relate to both online and offline produce, there are ways of making money in the internet that are evolving at a tremendous pace and involve only the online merchandise - so number three option is earning from online ads (whether textual or graphical banners, irrespective) placed on your business site.
In this case, the search engines will have some part of your visitors redirected to the third party businesses and of course the key of the process will involve your commission from each such redirection.
Having mentioned these specific ways of making money online, it is important to stress out the few steps of the rationality that the internet newbie business people should exercise during the start up.
First of all make sure to alternate your learning process (that is exploration of the new) with the practical implementation of the knowledge obtained.
Ensure that your business productivity does not suffer from the excessive theoretical emphasis without the due efforts spent for its practical side.
In simple words, spend one day learning and the other one putting your 'know how' into the practical skills to achieve the tangible results.