PatientsLikeMe (www.patientslikeme.com), the leading online community for people with life-changing conditions, announces the expansion of its fibromyalgia community to welcome patients with chronic fatigue syndrome (CFS), also know as myalgic encephalomyelitis (ME). By sharing information about their experience with CFS, patients can now find others just like them, including other patients who may have the newly discovered xenotropic murine leukemia virus-related virus (XMRV). The purpose of this expansion is for PatientsLikeMe to research the impact XMRV has on CFS patients.