Any eLearning Management System (e-LMS) contains electronic content and many tools that are needed for running an efficient electronic management system. Some of these are related to electronic communications. Arab Open University (AOU) is one of the first organizations that used e-learning systems in the Arabic region. We present in this paper an analytical study on the effectiveness of using electronic communications within e-learning environments. This analytical study will differentiate between the synchronous and asynchronous communications in e-learning. We will focus on the most used tools in e-LMS such as Messages, Forums, and Chat Session as a part of electronic communications within the learning management system. Experimental results on AOU experience of using different types on electronic communication are presented.