Viral Loops for Startups - Virality for startups made easy 💪
Coderway.net - Unlimited creative options
Product Virality - Learn to create infectious products
GoSquared & Slack - Traffic spikes and user notifications sent straight to Slack
YesGraph - Boost viral growth by recommending who users should invite
ClippingMagic.com - Remove image backgrounds online. Make backgrounds transparent, white, etc. Edit, crop, rotate, fix colors, add shadows, all you need for great photos!