Collector Resources

A curated jumping-off point for researching what something is worth, getting it graded or authenticated, or finding more for your collection — organized by category. Click a section to expand it.

WorthPoint Searchable archive of past auction and sale prices across nearly every collectible category. Heritage Auctions One of the largest collectibles auction houses - realized prices are a solid value reference. LiveAuctioneers Search results from thousands of live and online auctions. eBay Sold Listings Filter completed/sold listings for the closest thing to a real-time price check.
PCGS Coin grading plus the CoinFacts price guide and population reports. NGC Coin grading and the NGC Coin Explorer price guide. USA Coin Book Free coin values and auction price history by date and mint mark.
PMG Paper Money Guaranty - grading and a price guide for banknotes. Numista Community-maintained catalog of world coins and banknotes.
PSA The most widely recognized sports card grading service, with a price guide and population reports. Beckett Long-running price guide and grading service for sports cards. 130point Search recently sold card prices across eBay and major auction houses. COMC Marketplace with current asking prices across huge card inventory.
TCGplayer Marketplace with live market-price data across Pokémon, Magic, and other TCGs. Scryfall Comprehensive Magic: The Gathering card database with current prices. MTGGoldfish Magic: The Gathering price tracking and deck data. Pokellector Pokémon card checklist and set/collection tracker. Cardmarket Large European TCG marketplace, useful for cross-checking prices.
CGC Certified Guaranty Company - the standard comic grading service, with a census lookup. GoCollect Price tracking and sales history for graded comics. ComicsPriceGuide Community-driven comic price guide.
Hagerty Valuation Tools Classic and collector car valuation tools from the specialty insurer. Bring a Trailer Enthusiast auction site - completed listings double as real-world price data. Hemmings Classic car marketplace and price reference, running since 1954.
Hot Wheels Collectors Mattel's official Hot Wheels collector site. The Lamley Group Long-running diecast collecting blog with release info and values.
Mindat The largest open mineral database, with locality and identification data. The Fossil Forum Active community forum for fossil identification and collecting. iRocks Fine mineral specimen dealer - useful as a quality/pricing reference.
Kovels Long-running antiques and collectibles price guide. WorthPoint Searchable past-sale price archive (also listed above - it's that useful).
US Militaria Forum Active identification and authentication community for military collectibles. International Military Antiques Militaria dealer with detailed historical write-ups, useful as a reference.
AbeBooks Huge marketplace for used, rare, and first-edition books. Biblio Independent bookseller marketplace, good for cross-checking AbeBooks prices. ViaLibri Searches multiple rare book marketplaces at once.
Discogs Community-built release database, marketplace, and price statistics for vinyl and CDs. Popsike Historical auction price archive specifically for vinyl records.
Artnet Price Database Auction results and market data for fine art. Invaluable Search past and live auction results across art and antiques houses. Artsy Gallery and auction marketplace with artist market context.
PriceCharting Price guide for video games, consoles, and retro electronics. Vintage Computer Federation Community and forum for vintage computer collecting and restoration.
KEH Camera Used camera marketplace - listed prices are a solid real-world value reference. Camera-wiki Community-maintained encyclopedia of camera models and history.
Old Woodworking Machinery (OWWM) Reference and forum for antique woodworking machinery and hand tools. The Garage Journal Active forum with a strong vintage and antique tool community.
Julien's Auctions Leading auction house for celebrity and entertainment memorabilia. Heritage Auctions Also has a large entertainment and historical memorabilia division.

These are third-party sites we don't control — always cross-check big decisions across more than one source.