I would like to setup a network similar to edublogs, but for shops

Hi, I would like to setup a multisite similar to edublogs, but for businesses in my area. The idea is to setup a site where businesses can create their own websites under one brand and then id like for all the news feeds to shop up on the main site. Please let me know what I need to install in order to achieve this. This is my first day with WPMUDEV and Multisite.

Thank you!