For some introductory topics that I don't want to invest a ton of money into but want to know more, I've gotten good mileage on lynda.com, free access via my li

For some introductory topics that I don't want to invest a ton of money into but want to know more, I've gotten good mileage on lynda.com, free access via my library. Some videos are quite old so for topics that move quick like technology, be sure to watch the version of the course that is 1-2 years old