Being a High Schooler myself, it is actually really cool to see viral effects first hand. For example, when I released my first simple game app, Runbow, I thought it might catch on if I just played it in class. It did, within a day, 1/3 of the students at my school had it (school of 2000). I was also featured in the school newspaper. It was a fun experience. I wrote a blog post about it: