What causes snoring and how can it be cured?

Vibrations in throat: It is usually caused by vibrations in the throat area. Possible cures include sleeping on your side, loosing weight, surgery, and an oral appliance. If the self help options don't work i would see a physician to rule out a life threatening condition called sleep apnea. If you don't have sleep apnea, then i would consider the other options.

Palate: Generally simple snoring is due to vibration of the soft palate. After appropriate examination and if the noise is not related to any growths or obstruction, the floppy part of the soft palate can be surgically resected, it can be stiffened with implants (dacron) or via radio frequency procedures.