Textbook publishers connect professors, instructors and students in ways that alternatives, such as open e-textbooks and open educational resources, simply do not.
这是个什么句型，前半句理解，从alternatives往后就看不懂了。
这里in ways后面的部分是由that引导的定语从句，修饰ways.这其中两个逗号之间的部分是插入语，用来举例说明。
