This template comes with 2 commercial extension: Easy Social Icons and OSEmbed Pro. Easy Social Icons is included for free.
Easy Social Icons
Easy Social Icons is a lightweight module that let you quickly add and manage all your social network links.
We use Easy Social Icons to show social networks icons for the Community demo.
Documentation for Easy Social Icons
OSEmbed Pro
OSEmbed makes Joomla embeds super-easy. All you need is the URL and you can embed almost anything into a Joomla site!
We use OSEmbed to show embeds from YouTube and Facebook for the Community demo. Check the list of the supported media embed providers here.