Should I mention this, or send it as a supplement?

Colleges and Universities A-Z California Institute of Technology
1

<p>I don't know if any of you guys use reddit, but I have one of the top posts of all time on their "math" board. The post is a step-by-step explanation of how I derived the law of cosines on my trig final. </p>

<p>Should I send a link with my application? It was a really popular post</p>

2

<p>Mention it if you want, but I would hope that it isn’t one of your top selling features. Try to focus on other things you have accomplished.</p>