Following are links to sites and companies that provide sports card information and analytics. This information can include everything from assistance with card identification, set checklists, product reviews, box and pack configurations, sales data and price comparisons/price guides that can assist in determining the value of a card, population reports, etc. Not every card research site or company in the industry is included below. We've only included the sites and companies that we have used and have experience with or that we know have a large presence in the space. We do not accept sponsorships and are not paid by any of the companies noted below. These links are provided for convenience and informational purposes only. We make no representations or warranties as to the products and/or services these companies provide or the experience and results that you may have with them.