I plan on getting my Amateur(or HAM) Radio license in the next year, and would like a course for guidance.  Mid-level HAM radio licenses require passing 180 question tests, and there are many large textbooks for people who want to get their license. I think 3 HAM radio courses (one for each level license) should be added, because like computer programming, having a HAM license will on average increase someone's wages, and provides more job opportunities. It also looks good on a resume, and is a fun pastime. I hope Khan staff consider my suggestion, and that YOU as a forum reader vote up.