One thing I learn the best from and love using is videos. I listen best by seeing and hearing things at the same time. This link above is a link to a youtube channel called Crash Course. This channel has videos for every subject like science, history, philosophy, math, and many others. They are little videos that give you a crash course over whatever subject you need. They have aminations and explain things in ways anyone can understand. These videos have helped me understand things in many of my classes and I recommend using these videos if you are ever struggling with a subject.
Another technology that I have learned to love is Google Scholar. Before I learned about Google Scholar I used to look up resources through websites like JSTOR. Those websites would help me find articles I needed for a paper or other things like that, but Google Scholar is so much easier to use and you can very specific about what you are looking for. You can choose if you want just academic journals or books or articles or whatever you are looking for. It pulls information from things all over the web and gives you the best variety. Overall, it is super helpful and I would recommend using it.