Beckett
Beckett has been one of the most respected trading card evaluators since 1984. In addition to basketball, the company also covers baseball, football, golf, hockey and more. Beckett provides a monthly magazine and an online database--both paid services--where collectors can look up the values of their rookie cards.
Free Services
If a collector just wants a rough estimate of a basketball rookie card's worth, there are some free services online. RookieStars.com specializes in the pricing of basketball rookie cards and features a database that includes cards from 1969. This free site bases its values on eBay sales and other pricing guides.
Shows/Stores
Sports card shows remain popular today. At these shows, hundreds of experts and appraisers will be on hand to determine the value of basketball rookie cards. These shows also provide a chance to buy, sell and trade sports cards. Sports card stores can also help evaluate rookie card pricing and may also be interested in purchasing the collectibles.