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Link:
Steps: http://incoming.hotjar.com/s/15854.

1. Click on the Link and Visit the Website.
2. Enter your Email There.
3. Verify your Email.
You are Done. Now Start Referring. Get a Free T- Shirt for 5 successful referrals who verifies their email.
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For Bloggers: If you are a blogger, you will get a Free and Attractive Feedback Collection Tool for your Website. If you are not a blogger, just enjoy the T-Shirt.
Additional Prizes:
The top 5 referrers receive a lifetime Hotjar account and a $250 Amazon voucher.
The top referrer will receive a lifetime Hotjar account and a $2500 Amazon voucher.