Are you supposed to pay taxes on the money you earn off of eBay or not? I've seen some "experts" who say that you should pay taxes only on the stuff you specifically bought to resell, others say that you should pay taxes on everything (from personal collection, bought to resell, etc.) you sell online, and yet others say that you don't need to pay any taxes at all.

The IRS' website doesn't even seem to address online auctions at all...the closest document that I found was describing earnings from yard sales.

For those of you who sell regularly on eBay *cough*Sylentwulf*cough*, do you/have you plan on paying taxes for eBay earnings? Does anyone know what the IRS' true stance on this is?