Inclusion criteria implementation  - Reg. physiotherapists working in twenty physiotherapy clinics in primary health care.  Exclusion criteria implementation  - No exclusion criterta  Inclusion criteria to evaluate the effectiveness of neck-specific exercise  The physiotherapists will include patients ≥ 18 years with neck pain. Patients are required to have internet access by phone, tablet, or computer Be able to read and understand Swedish  Exclusion Criteria:  Physiotherapists should exclude patients with "red flags"i.e., symptoms that suggest a serious illness or spinal abnormality. Serious trauma to the neck and no X-ray Preceding neck surgery Osteoporosis Myelopathy History of cancer Unexplained weight loss Present fever, history of infections Constant and progressive non-mechanical pain Insidious progression of pain Signs of spinal cord compression (neurological examination to exclude spinal cord or cervical myelopathy such as clumsy hands, altered gait, or disturbances of sexual, bladder or sphincter function).