Featuring your design in real life is really exciting, and this course wants to help you get there. Source: Creating Mockup Templates in Photoshop | Pluralsight
Free Design Resources is a site dedicated to help you find the high quality design resources for free. Crafted with love from amazing artists and professional designers around the world. Source: Free Design Resources – Free Graphics, Fonts, Templates and More
Incredible list of free business, marketing and design resources Source: All Resources – Growth Supply
PixelBuddha: free and premium resources for designers and developers..
40 Free PSD Mock Ups for Showcasing Your Print Designs | Best Design Options.
Most appreciated projects on Behance.