[Air-L] Virtual Community of Practice Essential Bibliography

Hi everyone, my name is Rosanna Tarsiero, I'm a consultant and author in the field of virtual communities of practice. Last time I update my essential bibliography on this topic was more or less one year ago. Questions: 1) does any of you have a bibliography that can be shared with me? 2) does any of you know of recent works (2006-2007) written on this topic? I'm after *any* work, theoretical/practical, quantitative/qualitative. Thank you in advance Rosanna Tarsiero