syber - 5:47 pm on Jan 29, 2005 (gmt 0)
If your only business income is from Adsense and affiliate programs, I would think twice before getting a business license. Otherwise, many local governments will then look at you as a revenue source from many angles - from property taxes to use taxes to employment taxes. If you are not storing and shipping a product and don't have a facility open to the public, then you should be able to claim that you are a commissioned sales agent rather than a business. It would be best to check with your local accountant or tax advisor first.