Background: Virtual communities provide the potential to increase participation in evidence-based practice in addition to bringing together a range of cultural perspectives and experiences of different healthcare systems. Since 2006 the Bahrain Branch (UK Cochrane Centre) together with the Iranian Cochrane Informal Network have played an active role in recruiting new co-authors and connecting them with other Cochrane authors from countries around the world. In the process, teams of new and experienced authors were created and mentored ‘virtually’ to conduct Cochrane systematic reviews. Objective: To evaluate co-authorship networks and the level of international collaboration that has been developed as part of a virtual mentorship program. Methods: We selected all the Cochrane reviews that were published in The Cochrane Library in Issue 2, 2009 as a result of the virtual mentorship program, constructed an international co-authorship matrix (Table 1) and calculated networking measures. Results: Seventeen Cochrane reviews were published during this collaboration with 3-6 authors. In only two reviews were all the authors from one country, in total there were 21 different types of international co-authorships in the matrix. Authors were affiliated to institutes in Bahrain, Brazil, Canada, Germany, Iran, Jamaica, Singapore, Switzerland, UK, United Arab Emirates and US. Four reviews involved authors from four countries and seven reviews included individuals from three countries. The remaining four reviews had authors from two different countries. We will describe the tools and methods used in this virtual project to ensure an efficient and coordinated collaboration. Conclusion: Virtual training and mentorship (ViTaMIN) enhances opportunities to increase the number of Cochrane reviews published in the Library in addition to increasing international collaboration and joint authorship. Use of free online tools can be beneficial in providing authors from countries with limited resources with the necessary training and mentoring support to enable them to conduct Cochrane reviews.