DesignMunk - Landing Page Inspirations
OpenMCT by NASA - A web based mission control framework
Muzli - UI/UX and Design Inspiration Chrome Extension
Themeshaker - It's a web application and filtering tool to find WordPress themes quickly and easily.
UI Movement - The best UI design inspiration, daily
Themes 21 - Themes21 provide 90 + responsive best free WordPress themes & templates. We have more than 100s of templates of WordPress with slider demo content for free.