As of my research on the web, I have found that there are many free tutorials and video tutorials that are available. To learn Informatica, you must learn the concepts properly. So, I would suggest some of the Informatica tutorials, blogs and video tutorials that you can refer to learn Informatica. If you are a beginner in Informatica then this blog will guide you in the best possible way. You can refer to the following Informatica Training Course. Once you will go through the blogs you will get some insight into Informatica. Watch the video tutorial on Informatica to learn more concepts of it.