REFERAL MARKETING
The 3 things that all of the businesses presented here have in common are that they are the absolute best systems available, and that they are whats' called "Referal Marketing." Just so we are all on the same page, check out First Class MLM.
No matter how many people you know eventually at some point you will run out of friends and family that you would like to be partners with. If you want to be big and financially free, at some point you will need to consider how you will get leads.
Some examples are Buying Leads, Lead Landing Pages, Google (or equivalent) Adwords, Ezines, Blogs.
For a great free ADVERTISING