Professional development through Web 2.0 collaborative applications / Indi M. Williams, Bolanie A. Olaniran -- Web 2.0, the individual, and the organization: privacy, confidentiality, and compliance / Kerry J. Burner -- Turn on your mobile devices: potential and considerations of informal mobile learning / Shuang Hao -- An activity theoretical approach to examining virtual professional development and informal learning via social networks / Joseph M. Terantino -- Applying social network analysis and social capital in personal learning environments of informal learning / Xiaojun Chen, Ji Hyun Yu -- Linguistic aspects of informal learning in corporate online social networks / Magdalena Bielenia-Grajewska -- Creating ongoing online support communities through social networks to promote professional learning / Maria Elena Corbeil, Joseph Rene Corbeil -- Developing professional competencies through international peer learning communities / Hanna Yakavenka -- Use of social network analysis to create and foster interdisciplinary research, projects, and grants among faculty / Kyle Christensen, Iris M. Saltiel -- Social media as a learning tool in medical education: a situation analysis / Mariliis Vahe, Khawaja Zain-Ul-Abdin, Yalin Kiliç Türel -- It's all about personal connections: pre-service English teachers' experiences engaging in networked learning / Luke Rodesiler, Lauren Tripp -- Online mentoring as a tool for professional development and change of novice and experienced teachers: a Brazilian experience / Aline Maria de Medeiros Rodrigues Reali, Regina Maria Simões Puccinelli Tancredi, Maria da Graça Nicoletti Mizukami -- An analysis of teacher knowledge and emotional sharing in a teacher blog community / Jung Won Hur, Curt Bonk -- Twitter-based knowledge sharing in professional networks: the organization perspective / Vanessa Paz Dennen, Wenting Jiang -- Story-based professional development: using a conflict management wiki / Wayne A. Slabon, Randy L. Richards -- Dermatological telemedicine diagnoses and andragogical training using Web 2.0 mobile medicine video conferencing / Richard Brandt.