TeV gamma-rays and the origin of cosmic rays

The past decade has seen TeV gamma-ray astronomy emerge as a powerful tool for the study of high-energy astrophysical phenomena both inside and outside our galaxy. One of the central questions pursued within the field is that of the nature and origin of cosmic rays. Great strides have been made in characterizing the high-energy radiation emerging from several individual objects, but are we any closer to answering this century-old question? I will review some recent interesting TeV measurements and discuss them in this context, along with relevant multi-wavelength observations.