Online arbitrage endorsed by a multi-millionaire
(Nothing to sell to you here. Just inspiration)
Have you heard of Jeremy Schoemaker? He's one of my idols (among Richard Branson, David Lee Roth, Seth Godin and Batman).
Schoemaker is an infamous entrepreneur who has made hundreds of millions of dollars with his Internet ventures, blog, and his mega-earnings from Google Adsense.
He's also a best-selling author and is the 'most influential person on the internet'.
Here's where it gets interesting:
A reader just asked him what he would do if he lost all his fortune.
His answer (in a nutshell):
Online and offline arbitrage (buying products low and reselling them high).
He cites the huge inefficiencies in the marketplace (meaning: opportunity for buying low/selling high is everywhere).
You can read the article right here (he talks about 'our' business about halfway down.)