You must check out apostrophell, "... where we laugh, cry and scream at the ritual abusers of the innocent little apostrophe."
What a great site! I cringe when I notice people misuse the apostrophe, e.g., the Hugh Grant/Sandra Bullock movie "Two Weeks Notice" is in fact spelled incorrectly. Feeling high and mighty about my superior grammar, I decided to take the apostrophe test.
I got four wrong.
Humbling yet educational at the same time.