Jessica Levinson has this piece in Loyola Law School's "Summary Judgments" blog, also appearing in this Los Angeles Daily Journal.
Here is an excerpt:
A small but well-publicized part of California's newly enacted budget, the so-called "Amazon tax," looks to be the catalyst behind California's next big ballot initiative battle. The law requires Internet retailers with a "physical presence" in the state to collect a sales tax from customers in the state and expands the definition of physical presence to include online retailers that have related companies or affiliates in the state. After the passage of the law, Amazon promptly cut ties with approximately 10,000 affiliates in the state.