This article is unavailable. Marilyn Leask, Hilary Constable. Web 2.0, online communities of practice, professional learning and research impact: Year 1 data from a national initiative. IFIP WG 3.5, Valuing Individual and Shared Learning: The Role of ICT. Prague, Czech Republic, 23-26 June 2008. If you wish to obtain a copy please contact the author below: marilyn.leask@brunel.ac.uk