In my personal experience, I first heard of it 1 year ago in a online forum game, people sold gold for Bitcoins, around March, gave it no importance at first. Now im kinda utterly commited to it. Really an interest subject of study.
My friend told me about bitcoin.he is a sr. Member now in this site.he thought me all the good things in bitcoin and i am so inspired and amazed that here in this site we can earn money if we will work hard and join signature campaign.