There are price guides for collectible Barbie dolls available at iGuide.net and BarbieValues.com, as of 2016. Since these are collectible dolls, the values and the availabilities of the dolls are constantly changing.
At iGuide.net, collectors start by entering Barbie Mattel in the box and clicking What's It Worth. Customers see listings of Barbie dolls by name, year of production and the value. Collectors can click on one of the names to see the price range in which the doll is currently selling, and to reveal its availability.
BarbieValues.com provides more than 10 pages of listings of the values of various Barbies and sets. Customers see the name of the doll, year of manufacture, a picture and a price range of current value.