All of the major social media sites have APIs designed for third-party integration. With a little bit of thought, it’s actually relatively easy to integrate your product with your users’ most popular social media sites.

At its most basic level, you can make it super quick and easy for users to refer their friends to your service – but with a bit of imagination, you can create user communities with your app, share user-generated content and awards (like Spotify’s playlists or HubSpot’s inbound certifications), and even streamline the signup process by importing social media data.