<p>girlrocking, your definition of a hook is broader than what is usually used on this site but, even if you use that broader definition, what Mark23 described really isn’t likely to fall into that category, since it isn’t very unusual at all around here. I’m not trying to discourage him (or anybody) from applying if they want to, but just trying to give an honest answer to his question. Every year hopeful students post in this forum about the websites, apps, internet businesses, etc. they’ve created, expecting to get an admission boost from it, and then it turns out not to have been much of a factor in the outcomes. So, just letting people know how it is. These are sort of common ECs these days at lots of schools.</p>