In between and after semesters of classes at universities, there is plenty of time to scour the internet for free or paid classes. Over this last summer, I was offered a free class called, "Intro to Software Engineering", from CodePath. Through this class, I received the introduction to Python I had not yet received from classes in my Master's degree, along with an evaluation of how prepared I was for jobs encompassing software down the road. I am glad to have received this offer for 12 weeks of classes, but I see how if the class was not related to stepping stones in my career path, I would have had no reason to take it.
What kinds of free classes have you taken in the past? And how have they shaped your careers so far?