Mobile Learning Network (MoLeNET)
A 3-year (2007-2010) program to support mobile learning and training in England. The website has many case studies of projects aimed at diverse groups of learners, including lesson plans, as well as publications and other useful resources.
Mobile Learning Portal
A portal hosted by the Learning Technology Center of the University of Texas, Austin. It has excellent resources such as lists of mobile learning articles, books, journals, conferences, societies, etc.