In recent years, sensor networks have attracted many researchers and practitioners. We would like to set forth a forum for researchers and practitioners to exchange ideas in development of sensor networks and their applications. The Second International Workshop on Sensor Networks (SN 2009) will be held in conjunction with the 2009 International Conference on Computer Communications and Networks (ICCCN 2009) .

The workshop welcomes researchers, practitioners, and students to join us in the workshop. The areas of interests include but are not limited to the following: