Software development is increasingly heading in the direction of combining agile software development practices and outsourcing software development to external vendors worldwide. The resulting agile global outsourced software development (AGOSD) projects are characterized by applying agile methods to distributed environments, which results in several problems for collaboration and coordination. Specifically, communication between the project participants has been found to be a major challenge in distributed environment. Therefore, our study investigates the problem of improving communication in distributed settings by identifying suitable communication practices for usage within AGOSD projects. Based on an extensive literature review, our study (1) provides an overview of adequate practices for usage in AGOSD and (2) points out differences to traditional communication practices of agile software development (ASD) projects used in collocated, non-distributed environments