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What is a profitable business I can get into online and not pay a lot of money to start it?

You can get started for under $200 Probably a lot less check out http://tymes90.googlepages.com/startanonlinebusiness that should get you started in your website venture. then check out http://tymes90.googlepages.com/gettingtraffic this will help you get traffic to your site quickly.
Good Luck