Use FoxType to Be More Polite

Inigo, you could have been a bit more polite to Count Rugen. As a gentleman, he would have appreciated that--especially as you were approaching him from a socially inferior position.
FoxType offers an interactive tool that it purports will assess the politeness of text. It will make suggestions for how you could rephrase your words so as to create a better impression.

Neatorama has more.