- Color Schemer —
Many, many examples of color palettes that match each other's tone – great for finding combinations that don't clash
- Tiny PNG —
totally free web service for compressing JPG and PNG files, usually reducing the size of the file by 75% or more!
- Demonstrating Responsive Design —
preview any website in various device sizes
- W3Schools.com —
- SourceForge.net —
large collection of open-source software
- Unsplash.com —
beautiful, royalty- and copyright-free photos for use in web applications
- OpenClipart.org —
free to use, no copyright restrictions!
- ClipChamp —
totally free web service for converting and compressing video files, by truly massive proportions