This repository contains the source JSON data for the iOS Dev Directory which is located at https://iosdevdirectory.com.
If your site covers iOS development and you'd like to add it to the directory, or if you'd like to add someone else's relevant site, you're more than welcome to! There are full guidelines on what is relevant and instructions over at the Contributing to the iOS Dev Directory page.
It's just a site that lists all of the blogs that cover the wonderful iOS development community. It was built, and is maintained by Dave Verwer who is also the author of iOS Dev Weekly.