"Taking 14 radio serial dramas from around the world shows that many aspects of the way they are organised are not replicable: what works in one context would just not work in another. This is because of the very nature of pro-social media projects: they depend so much on the personal contacts of the producers, and the specific needs and tastes of the target audience. A successful model for one country may well not work in another, simply because there are so many variables. Having presented this caveat, the following is a list of replicable features gleaned from the 14 projects studied. More detail about how these features work in practice can be found in each case-study. The features have been selected because they either show up strongly across all projects, have been singled out by project-holders as the key to their success, or because they seem to have the potential for translating across countries and sectors." (Recommendations, page 21)