Starting an Online Business "Without Website" - mostly called "work at home jobs":

It is just like starting any NEW project, where you have to work hard and spend time and might spend some money to earn more money in return, It needs planning. even if the job offered to you for FREE; remember it will take  some time to start really earning.
It is going to happen but take a moment and Ask your self some questions; How much time you can work every day? Are you good at typing, selling, reviewing, etc.? Do i have budget? how long i can wait to start getting paid?

Getting paid is a key as most of those jobs will make any registered online worker able to start earning immediately but by earning it means that your money is there for you and their terms and conditions are demanding a minimum earning to qualify you withdrawing from your account with them, no problem at all take it to the end with those rules, try at the beginning a source with low cash out releasing.
don't worry for sure you can find something even if you have few dollars only or if you don't want to spend any thing and looking for free sources, all options are there. 

keep in mind if it was as easy and simple as most of advertisement for it then you will find the whole world setting at home working online, as a beginner think about work from home job as an extra income, not your only income, that's will be great...step by step see what is it, first pick the free sources only, and from then you can improve your skills to develop this business