I'll give someone a whole U.S. dollar, which is more valuable than 10 million European dollars, if you create a firefox add-on to integrate dictionaries and thesauruses into the browser. What I mean is, make it so I can mouse-over a word and it will give me definitions and synonyms/antonyms that sort of thing. Like in World of Warcraft, when you mouse over an item.

$1, it's fucking worth it.