Grammer #2

Who vs Whom.
I've never known how to use Whom vs who, but I found a website that showed me an easy to remember how to use the two words.

Rule.
Use the he/him method to decide which word is correct. he = who him = whom

Examples:
Who/Whom wrote the letter?He wrote the letter. Therefore, who is correct.
For who/whom should I vote?Should I vote for him? Therefore, whom is correct.

Now I know that I can try he or hime to see which word to use.
http://www.grammarbook.com/grammar/whoVwhom.asp