RecordTS - RecordTS is a remote session recording software.
UXTesting - Discover how your mobile users feel
FullStory - Meet FullStory, the app that captures all your customer experience data in one powerful platform.
Startup Timelines - How the frontpages of famous startups changed over time
BugReplay - BugReplay is a bug reporting tool that records your screen and syncs it with network traffic and JavaScript errors. Reporting and fixing bugs just got easier.
Laws of UX - Key maxims that designers must consider when building UX