The IRS question

sold. From what I understand, and keep in mind it varies from state to state, if you are just selling stuff from around the house and your sales total is under xxxx a year, it's considered a hobby. BUT...if you buy things to resell, (like I do), you are considered a business whether you have a tax ID number or not. To be on the safe side, consult with a tax proffessional. There is also a wealth of information on the IRS website about online auctions at this site:
http://www.irs.gov/businesses/small/industries/article/0,,id=163622,00.html
Hope this will help....BTW Ebay does not release any pertinent info to the IRS.