When my column on paying income tax on eBay profits ran it brought a wave of emails on whether you were required to report income earned from eBay sales to the IRS sparked a number of additional questions and comments from eBay sellers who were hoping that I could somehow validate that their eBay activities were mere hobbies instead of actual businesses and therefore not susceptible to IRS taxation.Several folks argued that just because their little eBay hobby generated a little cash, that didn't make it a full blown business. It seems they consider...