A friend of mine showed me Bitcoin last September telling me that I could just make money by leaving my computer running. Needless to say I was a little skeptical, but after some resource I started mining.
I found Litecoin on BTC-e when I was looking for sites other than Mt-Gox to trade BTC and have been day trading between the two currencies with reasonable profit for about a month or two.
That is what intrigued me. Leave the pc on and it auto-magically turns electricity into "money"
After learning about bitcoin I realized it had so much more potential.