When I join affiliate networks, I see SSN required on lots of them, and even Adsense has them. Ive made maybe over 40k in total revenue this year, so I better pay taxes on that right since they will be reporting that as well... But how will they know how much of that is profit for me though? Obviously I ran PPC campaigns, bought websites, PPV, domains, hosting, etc etc... Do i need proof of all that? How should I go about this!!?? Which company should I use to do internet marketing taxes lol??? Any help? Thanks!