A gigantic list of homonyms. Why do we need such a list? Apparently, this list is useful for punning.
I list it here only to show one thing: you just never know what you are going to stumble across on the internet.
Update: Little known fact: My wife once won a homonym contest in school. Married for 7 years, and I've known her for 21 years, and yet she still never ceases to surprise me.