Undesign - Free design tools and resources for your projects
Pexels - Find the best free stock images about Browser Home Page. Download all photos and use them even for commercial projects.
Super designer - Super designer is a collections of simple design tools to create unique designs in a a few clicks.
TheStocks.im - Best royalty free stock photos, videos, mockups, icons and fonts in one place.
Lean Service Creation - Open source design process and toolkit
Stock Up - The best free stock photos in one place