It’s 6 a.m. on a Monday and Jeanette Ramirez, 21, just woke up. She reaches for her cell phone and opens her FMyLife application to read the latest posts. Throughout her day, Ramirez checks her phone...

For decades, college students have shared with each other information about which professors to take and which ones to avoid.  This is exactly what students are doing on ratemyprofessors.com, but on an...