Apostrophe Misuse Alert

I've noticed lately that the misuse of apostrophes is rampant throughout the web, so I've decided to launch a campaign to stamp out apostrophe illiteracy.

Here is the condensed version of how the apostrophe should be used:

1) In contractions. Example: "It's" is short for "It is".

2) In possessives. Example: "Dale's house", or "The Robinsons' house". Exception: "Its" is the possessive of "it".

3) APOSTROPHES ARE NEVER USED TO DENOTE PLURALS!

For more info, see:
http://www.apostrophe.fsnet.co.uk/