Starting your business on a shoe string budget isn't as hard as one might think.  Keep in mind, I believe an ecourse is the cornerstone of your business so my focus is creating an ecourse for your business as well.

You can actually get yourself set up in the world of internet marketing without even owning a computer!  (Of course, I feel you should have one, but it's not 100% necessary)  It may be tougher in bigger cities, I'm not sure, but every public library has computers for library card holders to use.  Some have limits on the amount of time one could spend on it, others don't.  Consult your local library to be sure.  

OK, so you now have access to a computer.  I would say go to a store and buy some sort of cheap memory stick for the time being unless your library allows you to store info on their computer.  So now, create your ecourse in a WORD document.  We're doing this now because we want to utilize our time for what we need to do later.  I have other writings and teaching on how to create an ecourse, so we won't get into it now.

After your ecourse is created, you need to get a domain name.  I ALWAYS recommend getting a domain with your name, like http://www.YOURNAME.com type of thing. 

There are places were you can get email capture and autoresponder programs for free, so you'll need to dig around to find these. (I'm not advertising for any companies here). 

There are also awesome places that do this for a minimal fee, which is what I recommend. 

You can find extremely cheap hosting and you can get free blogs at different places as well. 

Put all the pieces together and then make your ecourse available on your site. 

Depending on what kind of ecourse you're utilizing, the money can be made in different ways. 

There you have it, you've set up a functioning internet business on a shoestring budget WITHOUT having your own computer.  Of course, with your own computer, you can do a lot more, but for now, we'll leave it like this.