Amazon is set to open distribution centers at two large US colleges and offer students next-day delivery of textbooks and other items through co-branded websites. The universities of Massachusetts Amherst and Purdue say that the deal means students will save nearly $400 annually on textbooks. Amazon is also giving the schools a 0.5-2.5 percent cut, which will net at least $1.7 million in revenue for Purdue and $1.5 million for UMass over four years, according to the WSJ. The Amazon distribution center will completely replace the UMass textbook annex, currently operated by educational specialist Follett. That store will no longer carry course materials, but will continue to sell computers, clothing and other items.