What is it?
FuelPHP is a framework for PHP 5.3 and higher that has used other frameworks as an inspiration, but taking their own twist.
How to support
FuelPHP has a special donation page where you can donate using Paypal. They also list an option to hire developers of their sponsor. When you mention you found out about them from the FuelPHP site, they'll donate a percentage of the project fee to FuelPHP.