Bitcoin is a consensus network that gives an oportunity of an introduction of a new payment method. It is a complete new kind of digital money. Bitcoin is the first decentralized payment network based on PTP technology and is maintaned by its usesrs that don't have central bank or intermediaries. From the costumers viewpoint it's like "money for internet", but that's not really true because everybody can make real money from it. It is also the most successful triple accounting system, which is well known.
This is my own opinion based on what I have read on internet