The network economy is the emerging economic order within the information society. The name stems from a key attribute - products and services are created and value is added through social networks operating on large or global scales. This is in sharp contrast to industrial-era economies, in which ownership of physical or intellectual property stems from its development by a single enterprise. Business models for capturing ownership rights for value embedded in products and services created by social networks are being explored.

In the present book, fifteen typical literatures about online finance published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on economic systems, information economy, electronic business, intellectual property, information revolution, virtual economy, etc. We hope this book can demonstrate advances in online finance as well as give references to the researchers, students and other related people.