Internationally, several types of primary care research networks exist with varying principal functions, but all aim to improve the quality of primary care by building a setting-appropriate evidence base. There are global differences in the stages of development and implementation of these networks, with some of the most well-developed in countries such as the UK and the Netherlands. 1 In general, primary care research networks can be subdivided into sentinel practice networks, practice-based clinical research networks, networks contributing data to routine databases and specific condition/purpose networks.