UI Coach - Become a better UI designer in 30 days
Atlassian Design - Design, develop, and deliver
Rage Grade by FullStory - Benchmark your customer frustration
UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.
Weekly UX Exercise - Receive challenges top companies use to interview designers
The Adventures of UX Hero - The world’s first User Experience comic series