Rebol is a lightweight programming language. Rebol's unique design makes it more productive than other language technologies. The leverage comes from Rebol's unique blend of domain specific sub-languages called dialects. Learn more.
Why use Rebol? Most software systems are needlessly complex. We rebel against complexity and fight it with the most powerful tool available: language itself.
If you are a programmer or software engineer, and you're curious about Rebol, here's a good place to learn what it's about.
Carl's REBOL Blog - Vive la REBOLution!
REBOL/SDK download page is found here.