DigitalOcean – Hosting/VPS Service with US, EU and Singapore Datacenters
They have new coupon on May 2015. Same deal as always, only 1 code per account. They make you give Credit Card details first to verify who you are supposedly but its still a nice way to test things out.
Coupon for $40 free credit (Coupon Code has expired on 2015 May 01):
Coupon for $10 free credit: