Imagine searching through Grandma's garage, and boxes of faded baseball cards suddenly appear in front of you. Doesn't your heart race a little? "Could these have any value?" I understand the buzz ...

Online marketplace eBay is once again expanding its authentication service, this time to include support for authenticating valuable trading cards. The service will now be able to authenticate cards ...

Check out this live eBay auction, with vintage and modern sports cards. Find rare pickups, including high-end grails!