Camwhore
A variety of attention whore, typically a young and very stupid woman (though occasionally a twink), who will do anything on a webcam in exchange for attention, money, items from online wishlists, or just to be generally slutty.

Camwhores typically suffer from internet disease and engage in constant shameless self promotion.

Evolution of the term
Typically any term ending in the suffix whore is deemed negative, but much like the terms attention whore and drama whore, the term camwhore has been appropriated into comical and friendly usage. No longer a derogatory epithet, the term is descriptive at worst and friendly or complimentary at best.

http://encyclopediadramatica.com/index.php/Camwhore