Picreel - Recover abandoning visitors and turn them into customers
UserInterface.io - Weekly UI/UX tips in your inbox for free
Persado - Persado is a SaaS-based marketing automation platform prowered by NLP.
UIDB - Find examples of any UI
SocialProve - SocialProve shows small notifications boosting your website conversion +15% with real-time social...
50 UI Tips - Improve your UI/UX skills in an hour, for free