Yep, Soundation is giving you free months of subscription simply by referring your friends!

Here’s how it works:
Log in to your account and go to https://soundation.com/account/referrals
Copy the referral link and email it to your friends and family, or spread the love through Facebook and Twitter.
Your friend will get two deals to choose from - one month of Free premium or 50% off Yearly Premium - from the link you sent.
Each time someone clicks on your link and subscribes to Soundation, you’ll get one free month of Intro or Premium, depending on which subscription you’re currently on.
You can follow the progress of all your invites and check the rewards you’ve earned on https://soundation.com/account/referrals