Authors are encouraged to submit full papers describing original, previously unpublished research, not currently under review by another conference or journal, addressing state-of-the-art research and development in all areas of Peer-to-Peer Computing or Online Social Networking. Papers must be submitted electronically in the EasyChair. The maximum size of papers should be 6 pages including tables and figures. The cover page must contain an abstract of about 150 words, 3-5 keywords, name and affiliation of author(s) as well as the corresponding author's e-mail and postal address. Each submission will receive at least three independent blind reviews from the TPC. At least one of the authors of every accepted paper must register and present their work at the workshop. Good luck with your submission!