A few months ago, the Ninth Circuit found that the arbitration agreement in Barnes & Noble’s website was not enforceable.  This week, the Ninth Circuit found that the arbitration agreement Sirius XM Radio relied upon was not enforceable because the user did not know he had any agreement with Sirius XM, let alone an arbitration

I see more and more arbitration agreements that contain their own limitations period (the timeline for bringing a dispute in arbitration).  Are all of those necessarily enforceable?  No. 

In Order of United Commercial Travelers of America v. Wolfe, 331 U.S. 586 (1947), the Supreme Court held that contracts may shorten the statute of limitations