It is not a call for paper per se, but I believe this might be a relevant journal to submit empirical research related to Sharing and alternative economies and Collaborative consumption of services.
PS: for services researchers, everything is a service ;)
Also, the P2P Foundation and the Transnational Institute published a
Primer on the Commons & P2P before the summer. It's a very complete read!
If you have any research-related news, please share it too.