People are always on the move. They want to access information wherever and whenever they are. That's why it is important for the Internet to support access from mobile users. This special issue discusses advances in the state of the art and practice of mobile Internet, as well as to identify the emerging research topics and to define the future of nomadic Internet users. Video streaming plays an important role in future mobile Internet. Therefore, three papers discuss this topic in this special issue. Two concerns with error corrections and one focuses on session mobility management. Three papers propose testbeds and architecture for future Internet. They represent views from different continents. Two papers study MIP (Mobile Internet Protocol), one on multimedia streaming QoS and the other on fast handoff in MIPv6. Finally, one paper proposes an authenticated group management protocol and another paper proposes routing with localized clusters. As a result, it is a very diverse and fruitful special issue.

This special issue is intended to foster the dissemination of state-of-the-art research in the area of IIC, including novel applications associated with its utilization, security systems and services, security models. We plan to publish high quality manuscripts, which cover the various practical applications and related security theories of IIC.

This special issue included two invited papers from UK and Korea and four selected papers from 19 submissions come from the open Call for Papers, comprising a 21% accept rate.

This special issue is to discuss advances in the state of the art and practice of Internet resource sharing and discovery, as well as to identify the emerging research topics and to define the future of Internet resource sharing and discovery. The call for papers for this special issue attracted more than 30 submissions from Asia, Europe, and North America, covering a wide range of topics in the field of Internet resource sharing and discovery. Each paper was carefully evaluated by at least two reviewers, resulting in 10 high quality research papers. The 10 accepted papers are divided into three categories. Four papers are related to peer-to-peer (P2P) design regarding community management, information discovery, etc. Two papers are about how to share the bandwidth efficiently in wireless networks, while the last four papers address data sharing, extraction, publishing, and browsing.