Nine months ago the Performance Marketing Association (PMA), filed a lawsuit against the State of Illinois over a newly-passed law requiring out-of-state retailers that sell to Illinois residents to collect and remit sales tax. \u00a0The theory behind the law is that by advertising through affiliate marketers located within the state of Illinois, a retailer establishes a "nexus" similar to a physical presence in the state -- even if it has no place of business or employees there. Immediately the law was described as devastating and doomed to lead to "no revenue, lost contracts... and lost jobs." \u00a0To avoid collecting the tax, and to call attention to the issue, shortly after the law's passage multiple online retailers (including Amazon, Overstock, Zappos and others) terminated their relationships with Illionois-based affiliates. \u00a0To stay in business, affiliate businesses like FatWallet, a 50-person small business, were forced to leave Illinois altogether. Yesterday, however, something significant happened. \u00a0On April 25, 2012 in an Illinois Circuit Court, Judge Robert Lopez Cepero struck down the law. \u00a0He\u00a0ruled that the Illinois affiliate nexus tax law violates the Commerce Clause of the US Constitution, declaring "the activity described in the statute does not establish nexus." He decided the suit in favor of the PMA, an industry group representing affiliate marketers, and for the benefit of thousands of affiliate marketers in Illinois and hundreds of thousands nationwide. The\u00a0ongoing tax grab against online merchants who market through affiliates is a nationwide problem. \u00a0 (See our coverage of the many affiliate tax bills and laws). \u00a0Yesterday's Illinois court decision, coupled with a recent Colorado ruling) signifies that the issue will not be left up to individual states. \u00a0Rather, it is a matter of interstate commerce and therefore of national concern. This is a polarizing issue, and it would be easy to look at it through one lens only. \u00a0However, there are at least three inherent problems with state-specific affiliate nexus laws: 1. It isn't all about Amazon - Yes, in the beginning those who propose such bills hope to get additional tax revenue for their state, and with Amazon.com landing 25 cents of every online dollar spent in the U.S., it isn't unusual for the legislators' rhetoric to reference Amazon. However, it isn't only Amazon.com being affected. Look at the bigger picture. \u00a0There are 75 more cents in every dollar that go elsewhere. Such state laws affect all online merchants that market through affiliates. 2. There's no "affiliation" as in an offline sense - In offline contexts "affiliate" often means "directly controlled" \u00a0(through ownership, 'parent company' relationships, or commercial and operating ties). \u00a0Online affiliates are very different. They are performance marketers who independently choose to invest their time, effort and money into promoting a merchant's offers, being paid by the merchant only once performance (click, lead, call, or sale) happens. They aren't "controlled" by the merchant. \u00a0They shouldn't be viewed as its representatives (which is where the idea of "nexus" stems from), but rather - as a type of an independent advertising channel. 3. The effect is reversed - States hope to collect additional taxes by passing the laws. \u00a0What they do not take into account is the real-world effect. \u00a0As in the Illinois situation above, \u00a0in the real world what frequently happens is: (a) merchants who do not want to collect the tax (including the largest players) terminate relationships with affiliates who reside in the state, which, in its turn, leads to (b) real job losses [see chart here], and (c)\u00a0a state's loss of tax revenue due to less money coming in income taxes [see also this article and this post]. Legislators and decision-makers need to understand the above. Yet, presenting all sides is nearly impossible without pro-active lobbying by -- and educational efforts from -- affiliate marketers themselves. \u00a0Affiliate marketers, so many of whom are small business owners and self-employed entrepreneurs, must speak out to make sure all sides are considered. Congratulations to the whole affiliate marketing industry on yesterday's important achievement in Illinois. Let's keep fighting, and educating!