Using mobile devices to support formal, informal, and semi-formal learning: uses and implications for teaching and learning This online article is presented with 'draft' stamped across it; it does not appear to be from a recognized publisher. The content does connect the topics I am looking for (informal or personalized learning, mobile devices, and teacher professional development). They discuss their recommendations and connect informal mobile learning to personalized learning. rating 4/5

designing for sustainable mobile learning: evaluating the concepts formal and informal This is a journal article that is freely available online. They argue that informal learning is more 'enriching' than formal learning. They write about mLearning (mobile learning) and state that some 'design aspects' must be left to learners. This is formatted in the standard way and has the usability one would expect of an online journal article. There are citations as one would expect but I am not qualified to evaluate the information quality. rating 5/5