As an open and distance learning (ODL) institution, Wawasan Open University (WOU)employs a blended approach for delivering courses to its undergraduate and postgraduate students, who are entirely adult learners. In this approach, the use of a learning management system (LMS) is absolutely crucial for student support as well as the enhancement of the whole learning experience to compensate for the lack of face-to-face interaction between the students and the academics. WawasanLearn, the open source, Moodle-based LMS system used by WOU, is a comprehensive online tool that enables students and academics to effectively interact in a virtual environment. However, analysis of data from several semesters shows that the rate of student interaction on WawasanLearn is low with respect to the sharing of knowledge. In order to qualitatively and quantitatively identify the factors contributing to the student participation rate in WawasanLearn, a survey was conducted among the undergraduate students studying in various disciplines including science and technology, business administration, liberal studies, education, languages and communication. Feedback regarding the manner of support students expect from WawasanLearn was gathered from close to 550 students throughout Malaysia. Another purpose of the survey was to identify whether and why students are drawn to participate more frequently in social networking platforms such as Facebook (facebook.com). As a result of the findings of the survey, a pilot project was implemented to study the use of Facebook groups as study groups for supplementing WawasanLearn. These study groups were run in parallel to WawasanLearn for seven course modules over two consecutive semesters. This paper discusses the findings of this pilot project with respect to the implementation of Facebook groups as supplements to the LMS in an adult ODL environment.