A very effective graphical interface for creating, manipulationg, and previewing images made "on the fly" using PHP, the GD Library, and the FreeType module. [Open source, GPL]
A loan calculator can be used to figure out regular payments of any kind of loan, based on the loan amount, loan length, interest rate and pay periodicity. phpLoanCalc uses template, and it can easily change its appearance for seamless integration wit...