The first international workshop on Collaborative Social Networks (CollaborateSN'09 ) aims to bring together researchers in various disciplines to explore the effect of social networks on collaborative applications. Our ultimate goal is to foster communication and collaboration across disciplines to enable interdisciplinary approaches for collaborative social networks.

The first Secure Service Computing workshop (SSC'09 ) aims to bring together researchers of the service computing and security communities to discuss and investigate the relationships between them. This will provide a forum where new important requirements and open research issues in securing service computing will be investigated, as well as new security solutions exploiting service computing technologies will be presented.

Tutorials are intended to enhance the technical program, and as such they should be relevant to collaborative computing, networking, work sharing, and applications.

We are seeking proposals for tutorials to be given at the 4th International Conference on Collaborative Computing (ColloborateComm 2009). Tutorials are intended to enhance the technical program, and as such they should be relevant to collaborative computing, networking, work sharing, and applications.