The Startup Way - The new book from Eric Ries, author of The Lean Startup
CADMAPPER - Instant CAD files for any location on earth
UI Playbook - The documented collection of UI components
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
50 UI Tips - Improve your UI/UX skills in an hour, for free
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.