Pinterest - Pinterest is a visual discovery tool that you can use to find ideas for all your projects and interests.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
DeviantArt - deviantART was created to entertain, inspire, and empower the artist in all of us.
Smartmockups - Create stunning product mockups, easily and online.
Dudepins - Dudepins is a visual blog that allows you to bookmark content that interests you by pinning it to your personal page. It is essentially a version of Pinterest with content that is catered directly to men and male interests.
Placeit - Generate realistic product shots in seconds