I started the HS Hackers group in September — it's been an incredible ride seeing it grow from 12 high schoolers at PennApps 2013f to a 1,000+ member strong Facebook community.<p>If you're a high schooler and you're reading this, join us :)<p><a href="https://www.facebook.com/groups/PennAppsHS/" rel="nofollow">https://www.facebook.com/groups/PennAppsHS/</a>