The glands of the skin, or the integumentary glands, include apocrine and eccrine sweat glands, and sebaceous glands that secrete sebum, or skin oil.
Hair, skin, nails and associated glands
Examples of holocrine glands include the sebaceous glands of the skin and the meibomian glands of the eyelid. Source: http://en.wikipedia.org/wiki/Holocrine
Sweat glands belong in your skin. In one square inch of skin their are 500 sweat glands. The main jobs of sweat include reducing your body's temperature through evaporation, providing a barrier from harmful bacteria, and keeping your skin from drying out.
Exocrine glands are glands that secrete their products to the outside of the body. Examples include sweat glands, which secrete a hypotonic salt solution to the surface of the skin; portions of the pancreas, which secrete pancreatic juice containing digestive enzymes and bicarbonate into the small intestine; and salivary glands, which secrete saliva into the mouth.
Mucous glands
Sebaceous glands produce oil from the Dermis layer of the skin. The number of these glands in the skin is hard to calculate.
sebacous glands
Sebaceous glands secrete oil to protect the skin. Sweat glands secrete watery perspiration to excrete wastes and cool the body.
Sebaceous glands produce oils for the hair and skin.
Batholin's Glands
Skin contains sweat glands and sebaceous glands and hair follicles.