I collect Benchwarmer cards, among other non-sports, and have been trying to figure out what cards are truly promos and show giveaways

I have seen on ebay autos from either 2009 or 2010 (I forget which) described as "promos", specifically a 3 card 4th of July set and a Father's Day auto. Anyone know if these were given to dealers as promos, or were they just pack inserts, and therefore not true promos ?

It is very confusing...

The fourth of July 3 card autograph set was given to dealers as an incentive for buying a case of Archives.